Over the years as a member, I have never seen anyone banned without just cause. The ones who have been banned were cautioned about their actions on the boards and via private messenger, most of which was being abusive to other members, the owners and the staff.
The site clearly post rules that one must abide by and the ones who ignore the rules are removed which is the way it should be.
The 24/7 staff is always available to help with any problem and does an excellent job.
The site, by far, is the best of it's kind on the internet.