LIghtning, you should not be a moderator. You banned him because you didn't like him. You "think" he didn't know what he was talking about. You "think" he might have been recruiting people to take their money. You "think" he was a vendor. You "think" people weren't learning anything. What a load of crap. It shouldn't be up to you to decide who gets to post & who doesn't just because you don't like them.
If he used "offensive" language; if he was a racist; if he physically threatened people; if there was proof he was trying to swindle people for money, etc, etc, etc; then yes ban him. But to ban him because you don't like him and "you" don't like his information and "you" don't think it's good information for me is way out of bounds.
If he used "offensive" language; if he was a racist; if he physically threatened people; if there was proof he was trying to swindle people for money, etc, etc, etc; then yes ban him. But to ban him because you don't like him and "you" don't like his information and "you" don't think it's good information for me is way out of bounds.