The one time this happened with me was with Worldnews after I told some racist shithead making derogatory, sexist comments against third world women (specifically, the Philippines, where I'm from) to shut up and stick to gardening. Got permabanned from the sub AND a 7 day suspension from Reddit. Racist guy got no punish of course.
So, it seems like this sort of thing commonly happens with big default subs, because I've never had a sub ban coincide with a Reddit suspension like that anywhere else.
Well, the difference between a sports car and a Tesla is that the former is not a good daily use vehicle in the city.