I got banned from r/AskReddit for posting the Chicago Transit Authority's customer service phone number, because it was "personal information". (In a thread about the CTA, no less.
The rule is any comment that matches the regular expression /\d{3}-\d{4}/ is a permaban.)
I also got kicked out of a Discord server I moderated because someone asked to be nagged about doing their homework, and I nagged them, and then someone in the server created fanart of my anime profile picture hitting their anime profile picture on the head with a magic wand, and I pinned it. I thought it was hilarious and I treasure it to this day. But that apparently was the last straw. ("There must have been some underlying issue," I hear you cry. There was. There were some differences of opinion on how to moderate the channel and the discord server. The community skewed about 60% female, and I was pretty quick to time stuff out like "women should be in the kitchen, not watching a stream" when the inevitable edgelord showed up to troll. This was apparently a controversial opinion, and all the other mods that would back me up on those decisions had long since left. I was pretty late to the giving up party, but I'm glad I eventually left. Even if not on my own terms ;)
The TL;DR here is yeah, it's really easy to be a bad community manager, and people are pretty good at easy things. Stir in a spoonful of power tripping, and the results are predictable.
I also got kicked out of a Discord server I moderated because someone asked to be nagged about doing their homework, and I nagged them, and then someone in the server created fanart of my anime profile picture hitting their anime profile picture on the head with a magic wand, and I pinned it. I thought it was hilarious and I treasure it to this day. But that apparently was the last straw. ("There must have been some underlying issue," I hear you cry. There was. There were some differences of opinion on how to moderate the channel and the discord server. The community skewed about 60% female, and I was pretty quick to time stuff out like "women should be in the kitchen, not watching a stream" when the inevitable edgelord showed up to troll. This was apparently a controversial opinion, and all the other mods that would back me up on those decisions had long since left. I was pretty late to the giving up party, but I'm glad I eventually left. Even if not on my own terms ;)
The TL;DR here is yeah, it's really easy to be a bad community manager, and people are pretty good at easy things. Stir in a spoonful of power tripping, and the results are predictable.