I was once banned from /r/startrek under similar rules. They were banning people for bringing in "negative attitudes" and I asked what that meant exactly and they banned me for it lol. It was very obviously brought in to remove people who didn't like Discovery and Picard but it was under the guise of removing trolls and racists. Several mods on there have even accused anyone who hates the show as being racist.

Hell to TERFs and transphobes but that purge brought up so many false positives it was hilarious. I get that people don't want to put up with bullshit and trans people already deal with having to justify their existence every day but some of the "transphobic user" bans didn't stand up to scrutiny and were unbanned almost immediately after. It kind of shook my faith a little.