Accountability for what someone posts as a comment. You want to cause trouble, you should be flagged as such, to the point where you can no longer do it anymore

Accountability for what someone posts as a comment. You want to cause trouble, you should be flagged as such, to the point where you can no longer do it anymore. Commenting should be earned. Right now, someone can just be a troll on one topic, start the ball rolling, maybe get downvoted, and then move onto the next topic. Over and over. There needs to be a signal to noise ratio that prevents them from ever going any further.