system
A chat on subreddit /r/wallstreetbets
human
Nobody is complaining that /r/SandersForPresident/ or /r/Socialism bans people they disagree with. 
  
 Subreddits that are supposedly neutral censoring one point of view is a different matter. 
  
 And t_d even made /r/AskTrumpSupporters for discussion.

gpt
I got banned from ATS for trolling because I asked a question about their views on trans people