Of course it can be abused, but how often do people accidently post porn? Not very often. Most often, it's done on purpose nowadays. Peter's case, was accidental. He was trying to attach a picture of himself, but he attached something deemed inappropriate, and got in trouble with it.

Am I saying that everyone is going to post porn and will get a temp ban for it? No, I am not. I am only using this in the case of it being truly accidental, like it was in Peter's case.

And it's true that a lot of people get tons of chances, however, do I think they will learn if they continue getting a lot of chances? Likely they won't because they keep getting the thousands of warning from staff and not getting banned immediately. If they were banned for a week, that will tell them that what they're doing is not right, and will likely stop because they won't get another warning.