I used 4 alts on Reddit for various purposes. They never interact, I just discuss different hobbies and topics on each one to make it harder to dox me.

My political account gets perma banned from r/socialism then from all of Reddit because I made a comment on a topic that hit the front page basically disregarding the claim. Within the next two hours each of my accounts get banned by admins from “circumventing the ban” since apparently it is against the rules to have more than one account. Two of the four accounts I have owned for 7+ years.