Another thing (can't edit my previous post) - like someone else mentioned, often people are banned through misinterpretations or light-hearted comments that are taken the wrong way. I made a comment on the forums to someone that was mildly rude and only in reaction to what the other player said, but it was taken offensively and I was banned for a short time. Just be very careful as words are not easy to interpret via text and also each GM is different in the severity of their punishments.