I still fondly remember my first perma ban. It was 3 months after signing up, commenting on stories on offmychest. The user was talking about her own infidelity and i told her cheating was wrong and she should just break up to prevent causing unnecessary suffering.
Mods banned me for not being supportive enough. Muted me when i asked about it. Looking back i should have stopped using the website then and there, because it only went downhill from there. At one point i was permabanned off a dozen subreddits i wasn't a part of because i was discussing with anti covid vaxxers about their misinformation and other subreddits said i was participating in subreddits responsible for misinformation and thus, was permabanned from their subreddits now too.
The straw that broke the camel's back was when i was in a news subreddit and a user posted a story with a clickbaity title. I said the title was clickbaity and i spoiled the bait by answering the clickbait on the title. The mods permabanned me and i mod mailed them and said it was ridiculous to ban me for such a frivolous thing. Mods reported me for harassment and admin gave me a 3 day ban. I deleted my account and just stuck to Lemmy ever since, where i haven't been banned even once in a year.