I still remember when quora was launched and people claimed it was more welcoming for open-ended questions, when it was obvious from day one it was the opposite, extremely hostile to any newcomers. It actually more appeared to be mostly a community of assholes that was expelled from SO.

My edits at wikipedia, for several different topics, were reverted, for bullshit reasons. One was ”the process here at wikipedia is for edits to be mindlessly reverted, then debated thoroughly, and maybe later rewritten as the mods wants it”. I.e. as a topic expert, just adding information as drive-by is apparently out of the question.

Another reason was adding anything about the future, like information about upcoming, scheduled events, was seen as advertising. It’s of course also not consistently applied across wikipedia but the mods couldn’t care less.

It’s far, far worse than SO. Complaints I’ve seen about SO’s moderation rules have always been to keep assholes away, thank god.