r/effectivealtruism
Effective altruism is a growing social movement founded on the imperative to make the world as good a place as it can be, the use of…
How to think about r/effectivealtruism
The community focuses on effective altruism, a philosophy and social movement that emphasizes using evidence and reason to determine the most effective ways to improve the world. Members engage in discussions about charitable giving, ethical considerations, and strategies for maximizing positive impact. The community is distinct for its analytical approach to altruism, often debating the merits of various causes and interventions based on empirical data and logical reasoning.
Confidence 4/5
Audience
Participants in this community tend to be highly educated, often with backgrounds in philosophy, economics, or science. They are typically young adults and professionals who are passionate about making a difference in the world. The vibe is generally serious and intellectual, with members seeking to engage in thoughtful discussions about ethics, philanthropy, and global priorities.
Posting culture
Content that thrives includes well-researched articles, data-driven discussions, and personal stories about effective altruism in action. Members appreciate clarity and conciseness, often favoring posts that present logical arguments or empirical evidence. Posts that appear overly promotional or lack substance tend to receive downvotes, and the community values respectful, constructive dialogue over heated debates.
Brand engagement notes
Brands should approach this community with caution, as overt promotion is often met with skepticism or hostility. Instead, they can engage by sharing valuable insights, research findings, or tools that align with the community's mission of maximizing impact. Collaborating with well-respected figures in the effective altruism space or sponsoring discussions on relevant topics can foster goodwill. Authenticity and a genuine commitment to the community's values are crucial for successful engagement.
Top keywords
What r/effectivealtruism talks about
Weighted by how often each term appears in posts and comments, relative to baseline frequency. The largest words are the strongest signals of community focus.
External signals
Where the community looks
Top external domains linked from posts and comments — a quick read on the sources of truth this audience trusts.
- 80000hours.org
- givingwhatwecan.org
- forum.effectivealtruism.org
- i.redd.it
- vox.com
- youtube.com
- youtu.be
- i.imgur.com
- animalcharityevaluators.org
- nytimes.com
- twitter.com
- newyorker.com
- reddit.com
- sentienceinstitute.org
- nyti.ms
- laulpogan.substack.com
- blog.givewell.org
- astralcodexten.substack.com
- trevorklee.substack.com
- wildanimalinitiative.org
Top contributors
Who shapes the conversation
The most active and most-upvoted posters and commenters in this community. Useful when planning outreach or studying a community's tastemakers.
Top posters
By post count
- u/lukefreeman
- u/lnfinity
- u/gwern
- u/eddytony96
- u/slow_ultras
- u/The_Ebb_and_Flow
- u/[deleted]
- u/LurkFromHomeAskMeHow
- u/buzzbuzzimafuzz
- u/nootherhell
- u/laul_pogan
- u/heterosis
- u/therapistfi
- u/Give-Directly
- u/Top-Entrepreneur4696
- u/JeroenWillems
- u/kstevo06
- u/80000hours
- u/klevertree1
- u/Novel_Role
- u/poonscuba
- u/Vegan-bandit
- u/Ok_Minute_1156
- u/tokynambu
- u/Only_Extension_6877
- u/makeswell2
- u/Initial_Appeal_2222
- u/appliedphilosophy
- u/coolguysteve21
- u/jackmalde
- u/lamson12
- u/SpacedOutMatt
- u/VapidCanary
- u/Pristine_Power9548
- u/Ok_Fox_8448
- u/Square_Tangelo_7542
- u/Intelligent-Bag-1983
- u/Samuel072
- u/imitationcheese
- u/MrStilton
- u/Michael_Bowlby
- u/kecr
- u/MetaWurse
- u/_DirtyDog
- u/RADVACproject
- u/Marionberry_Unique
- u/1willbobaggins1
- u/christineenie
- u/positiveandmultiple
- u/cleboomusic
- u/IAmAOrangeKoala
- u/TashBecause
- u/ribblle
- u/SomeRandomGuy33
- u/--MCMC--
- u/SunjeevKB
- u/americanslyme95
- u/MrFunnyMoustache
- u/Material-Tomorrow610
- u/veganactivismbot
- u/PathalogicalObject
- u/IndyHCKM
- u/FinancialSubstance16
- u/WindowlessVanMan
- u/DNA_AND
- u/Jiecut
- u/caseyjack7
- u/Fold-Cheap
- u/Tinac4
- u/metacyan
- u/coldbuttonissues
- u/Homura_A
- u/adekmcz
- u/Redderact42
- u/InfiniteOrchestra
- u/whoamisri
- u/Clean_Membership6939
- u/nthpolymath
- u/BigOblivion
- u/isbtegsm
- u/newt-s
- u/Feuertopf
- u/UnlikelyMagazine3791
- u/ImOnYourScreen
- u/j0rges
- u/TheHumanSponge
- u/limesoda998
- u/chickennarwhals
- u/punkthesystem
- u/AkeemAbraiz
- u/AdvocacyInstitute
- u/OneStepForAnimals
- u/unique56
- u/oliver_siegel
- u/please_just_work
- u/Yozarian22
- u/ireadeverythingtwice
- u/LeatherJury4
- u/iamtheoctopus123
- u/LinearDigression1668
By votes
- u/lnfinity
- u/lukefreeman
- u/gwern
- u/eddytony96
- u/slow_ultras
- u/The_Ebb_and_Flow
- u/therapistfi
- u/LurkFromHomeAskMeHow
- u/heterosis
- u/[deleted]
- u/SomeRandomGuy33
- u/Give-Directly
- u/effectiveethics
- u/dtarias
- u/queguapo
- u/VapidCanary
- u/happy_bluebird
- u/SpacedOutMatt
- u/SunjeevKB
- u/--MCMC--
- u/Top-Entrepreneur4696
- u/nootherhell
- u/JeroenWillems
- u/Only_Extension_6877
- u/americanslyme95
- u/Pristine_Power9548
- u/80000hours
- u/shampooski3
- u/makeswell2
- u/kstevo06
- u/robwiblin
- u/Ok_Fox_8448
- u/appliedphilosophy
- u/buzzbuzzimafuzz
- u/Gravesens1stTouch
- u/AnAngryBirdMan
- u/Material-Tomorrow610
- u/Initial_Appeal_2222
- u/Novel_Role
- u/Because_Covfefe
- u/TupperwareTerry
- u/PathalogicalObject
- u/caseyjack7
- u/FightExtinction
- u/WindowlessVanMan
- u/MountainMantologist
- u/laul_pogan
- u/eco_celosia
- u/runawaysam
- u/loadofcodswallop
- u/Intelligent-Bag-1983
- u/poonscuba
- u/leMonkman
- u/CapableCanary6
- u/tempaccount326583762
- u/siobhan_coelho
- u/veganactivismbot
- u/Modern_parrhesiast
- u/DNA_AND
- u/CantoLog
- u/klevertree1
- u/24024-43
- u/IndyHCKM
- u/coolguysteve21
- u/MrFunnyMoustache
- u/hmmNwhy
- u/Chuute
- u/Square_Tangelo_7542
- u/Clean_Membership6939
- u/curiouskiwicat
- u/Fold-Cheap
- u/Redderact42
- u/ThePoorBatman
- u/kieuk
- u/whoamisri
- u/FinancialSubstance16
- u/imitationcheese
- u/Jiecut
- u/aRationalMoose
- u/RickRoll_thegame
- u/Samuel072
- u/Feuertopf
- u/Homura_A
- u/jackmalde
- u/metacyan
- u/innovateworld
- u/HamsterInTheClouds
- u/adekmcz
- u/MrStilton
- u/philbearsubstack
- u/nthpolymath
- u/Vegan-bandit
- u/TheFakeAtoM
- u/Ancient_Bus3722
- u/Personal_Spot
- u/fatdog1111
- u/phileconomicus
- u/Tinac4
- u/patchikin
- u/cheesiest_pizza
Top commenters
By comment count
- u/[deleted]
- u/kecr
- u/False_Fondant8429
- u/leMonkman
- u/Valgor
- u/DonkeyDoug28
- u/laul_pogan
- u/InfiniteOrchestra
- u/bz0hdp
- u/MohKohn
- u/TheNextLiamNeeson
- u/Top-Entrepreneur4696
- u/RandomAmbles
- u/floodmfx
- u/lnfinity
- u/vivri
- u/Shimmy-choo
- u/SomeRandomGuy33
- u/IndyHCKM
- u/AskIzzy
- u/casens9
- u/DpressAnxiet
- u/zpinnis
- u/appliedphilosophy
- u/_DirtyDog
- u/dtarias
- u/GND52
- u/TashBecause
- u/gnramires
- u/poonscuba
- u/MultiPorpoised
- u/highway-61-revisited
- u/cdnfire
- u/kwanijml
- u/nesh34
- u/maxh213
- u/ParthThaya
- u/muffinpercent
- u/Pristine_Power9548
- u/boba_tea_life
- u/Werkt
- u/Initial_Appeal_2222
- u/Trim345
- u/EricHerboso
- u/--MCMC--
- u/MrFunnyMoustache
- u/diogenesintheUS
- u/TheFakeAtoM
- u/Withyourfeetintheair
- u/kogsworth
- u/solaza
- u/FrostedSapling
- u/Mountain_Chicken
- u/cant-feel_my-face
- u/SECfuckoff
- u/calvinballing
- u/twisterase
- u/CarbonColdFusion
- u/Kablo
- u/alach11
- u/VastDragonfruit847
- u/Maleficent_Fudge3124
- u/UFO_101
- u/ImOnYourScreen
- u/thegreatnick
- u/redwar226
- u/AlarmingAffect0
- u/nomatron
- u/bauk0
- u/TryToFlyHigh
- u/Pelirrojita
- u/king12995
- u/the_timezone_bot
- u/eatslow_runfast
- u/NatCarlinhos
- u/HazelGhost
- u/mrtorrence
- u/Hypersapien
- u/ShadowBB86
- u/utilop
- u/zaxqs
- u/Electronic_Tie_4867
- u/Shad0wPhe0nix
- u/That_sixth_guy
- u/octaviousearl
- u/NoUsernameSelected
- u/bread_n_butter_2k
- u/the_last_action_hero
- u/No-Boysenberry283
- u/edthewave
- u/mankiw
- u/panic_in_church
- u/PuntySnoops
- u/L4L-MAA
- u/Tassager
- u/ShadowyCabal
- u/every-name-is-taken2
- u/Geese4Days
- u/Michigan__J__Frog
- u/nujuice17
By votes
- u/IntoTheNightSky
- u/[deleted]
- u/lnfinity
- u/ParthThaya
- u/rngoddesst
- u/TheNextLiamNeeson
- u/Initial_Appeal_2222
- u/EricHerboso
- u/InfiniteOrchestra
- u/kanogsaa
- u/MohKohn
- u/DonkeyDoug28
- u/_DirtyDog
- u/cheesiscool
- u/Tinac4
- u/laul_pogan
- u/nomatron
- u/commentingrobot
- u/kogsworth
- u/poonscuba
- u/gnramires
- u/shampooski3
- u/SomeRandomGuy33
- u/RandomAmbles
- u/MrTase
- u/KitsuneKarl
- u/eddytony96
- u/PM_UR_BAES_POSTERIOR
- u/Valgor
- u/dtarias
- u/Top-Entrepreneur4696
- u/BobSanchez47
- u/queguapo
- u/cujaadventuring
- u/kecr
- u/Yozarian22
- u/5yr_club_member
- u/PurpleDancer
- u/RB_Kehlani
- u/TashBecause
- u/alach11
- u/Tassager
- u/Trim345
- u/bellviolation
- u/slow_ultras
- u/iomoonlight
- u/jasondclinton
- u/thegreatnick
- u/That_sixth_guy
- u/cdnfire
- u/muffinpercent
- u/notgoodthough
- u/vivri
- u/bz0hdp
- u/zpinnis
- u/the_last_action_hero
- u/labibliotequadonde
- u/kwanijml
- u/DoctorTobogggan
- u/mystical_soap
- u/LurkFromHomeAskMeHow
- u/Pristine_Power9548
- u/--MCMC--
- u/eario
- u/boba_tea_life
- u/NatCarlinhos
- u/Michigan__J__Frog
- u/watchdominionfilm
- u/nesh34
- u/FightExtinction
- u/cafemachiavelli
- u/Tenoke
- u/Shimmy-choo
- u/ssalbdivad
- u/SWIMAnonymous
- u/No-Boysenberry283
- u/forteller
- u/wellbeing69
- u/Werkt
- u/dontpet
- u/NoUsernameSelected
- u/panic_in_church
- u/prudentj
- u/leMonkman
- u/rocketlegur
- u/MultiPorpoised
- u/Psyyx
- u/TheFakeAtoM
- u/therapistfi
- u/highway-61-revisited
- u/Bzweebl
- u/mulahey
- u/Hard_on_Collider
- u/IndyHCKM
- u/mankiw
- u/moskov
- u/happy_bluebird
- u/MrFunnyMoustache
- u/solaza
- u/FrostedSapling
Similar communities
Where this audience also spends time
Topic-adjacent communities surfaced from Reddit's own related subreddit signal.
FAQ
r/effectivealtruism — frequently asked questions
Quick facts about this subreddit's size, history, focus, and related communities.
How many subscribers does r/effectivealtruism have?
r/effectivealtruism has approximately 35,088 subscribers as of May 27, 2026.
When was r/effectivealtruism created?
r/effectivealtruism was created on September 17, 2012 (14 years ago).
What is r/effectivealtruism about?
The community focuses on effective altruism, a philosophy and social movement that emphasizes using evidence and reason to determine the most effective ways to improve the world. Members engage in discussions about charitable giving, ethical considerations, and strategies for maximizing positive impact. The community is distinct for its analytical approach to altruism, often…
What subreddits are similar to r/effectivealtruism?
Communities similar to r/effectivealtruism include r/slatestarcodex, r/negativeutilitarians, r/sneerclub, r/controlproblem, r/trueantinatalists.
Who are the most active posters on r/effectivealtruism?
The most frequent posters on r/effectivealtruism include u/lukefreeman, u/lnfinity, u/gwern.
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