| A whole bunch of different effects, present on most forms of social media: Evaporative cooling (if an environment appeals to people they'll join and if an environment gets more extreme those who least like that direction will leave). The presence of visible up votes and downvotes magnifies this effect. Founder effects. Reddit in general and any given sub in particular was initially populated with people who are a bit unusual in some fashion. E.g. the initial reddit population was very techy. This effect also applies to any Internet forum (both in that Internet forums are used by somewhat odd people like us and that an Internet forum on Thing will pull people interested in Thing and interest in Thing very likely correlates with many other factors, such as socioeconomic status, culture, gender, subculture) General interest in going online to talk about things. The vast majority of people do not go online to talk and argue with strangers, those who do are different along a number of axes (such as a lack of young kids or higher disagreeableness) which in turn correlate with other traits and beliefs. In Reddit case there's also an element of active moderation, mostly due to founder effects, but also due to them being the only ones actually caring a lot (being activist) the main subs are policed by a bunch of supermoderators (who are mods in hundreds of subs) with similar views on issues such as trans rights and as a moral duty will actively attempt to remove people who express other viewpoints to keep the place tidy (without the viewpoints that are offensive and wrong). |
This is easily evidenced and is not true. You can check for yourself. Parroting this talking point shows that you do not check your facts.
Top 100 subreddit moderators and number of subs moderated:
* https://gist.github.com/bspammer/d6059d2bfa222a0f340353ae0be...