WMFT, I believe you are a little mistaken. I never banned any member of any board that I have moderated, with one exception, and that was because of persistent personal attack and/or refusal to comply with the iHub rules. I have however deleted many messages of posters who have made it a common practice to attack me personally or insult and offend me while a moderator.
There are 5 persons banned on the CEXI board on SI, all of them because of personal attacks, name calling or offensive remarks toward the moderator (me). Even as I invited them to return and behave in a civil and respectful manner, they refused to accept the SI Rules, hence, they chose to remain banned.
I know well that my position on certain issues is not popular, and is even irritating. But among civil persons there is no excuse for personal attacks and insults based on disagreement.