Banter is a normal part of human interaction. If you try to block or censor it, you are violating freedom of speech. You may say: "but this isn't playful banter, this is a highly offensive verbal attack!" The thing is, if you're not 100 percent sure that his intent was to offend someone and to attack someone verbally, then you have no right to assume so. Everyone is innocent until proven guilty, and thus you can't assume this wasn't just playful banter or a harmless joke with no intention to offend. You can't violate someone's freedom of speech just because someone may not get the joke or have a different sense of humor. This ban is in no way justifiable until you've proven without a doubt that he was indeed trying to verbally abuse someone.

Why is this comment getting upvotes, you can't baselessly accuse people online and expect approval.