I have never understood how some are banned and others are passed over. I will relate a true story that happened on the forum a few years ago. There was a male poster who was almost universally liked. He was conservative politically, a Methodist I believe, and extremely intelligent. He was also well rounded and had a huge trove of knowledge of everything from physics to pop culture.
Often people use abbreviations with which I'm not familiar; I usually look them up online. At some point a poster used the term "MILF." A woman who at the time was a prolific poster questioned what the acronym meant. The male forum member that I spoke of sent the woman a PM telling her what the initials stood for--after all, she had asked.
The woman then reported the well-liked man, and he was banned. She said that was not her intention, but nevertheless the man was not readmitted at that time. The woman later resigned from the forum under questionable circumstances.