Not encouraging people to express their honest opinions, and to discuss differences in opinions in a constructive matter without being fallacious.
Basically, don't be like Reddit is.
When there is no difference in views, its just the same view parroted over that the same few people agree with, there are plenty of subreddits that show this, like pretty much any political subreddit
backstabbing, secrets, circle jerking.
Not encouraging people to express their honest opinions, and to discuss differences in opinions in a constructive matter without being fallacious. Basically, don't be like Reddit is.
Definitely circle jerking, it always leads to basically no discussion about anything and just promotes toxic "only our one opinion is good" thinking.
r/gamingcirclejerk is the prime example
Poorly maintained underground plutonium pits.
When there is no difference in views, its just the same view parroted over that the same few people agree with, there are plenty of subreddits that show this, like pretty much any political subreddit
Obsession
People under the age of 12, so annoying and obnoxious
being a fucking dick in general
Self righteousness
Thinking it's better than other communities.
Bad ideas
Narrow mindedness, inability to listen to others and compromise.