It is not for me to debate what is racist and what is not. The Webmaster clearly stated that certain individuals were agreeing with what he saw as racist slurs from 2tuff. If he believes you or I (or anyone else for that matter) to be in any way racist then it is his duty to act accordingly. He banned 2tuff as he believed him to be a racist, yet not others who he also believes (or believed) to be racist.
If I was racist I would expect to be banned; others should be dealt with similarly. What is the use of rules if they are not upheld?