I believe that any topic that devolves into a discussion on racism, political correctness or Trump vs whoever, should be penalized most harshly. It brings out the worst in all of us and I for one cannot help posting sarcastic responses to those posts. Then, I get my butt in a sling with the mods.
I think anything else is fair play.
And, of course, any personal attacks directed at an individual should result in a ban.
I do believe that a limit to new topics would be nice, because it can get ridiculous to have so many posts that have no merit.