bro I got permabanend for saying the wind is blowing west, it was because one of my accounts was already banned from that sub and I didnt realize but it was just a random throwaway comment into a void of thousands on the front page. No idea why I initially got banned, was publicfreakout, but you can get banned from one sub on one account for any random reason like commenting on conservative even if you are a liberal, and those mods will ban you from other subs they own.

If you use alts for different hobbies or to change your name, you could unknowingly comment on a sub you got banned from on the front page and get every account you use instantly permabanned no appeal.