If you can't, and won't, enforce your "RULES," why did you create them, and why do you maintain them as "RULES" when they are nothing of the sort?
Moreover, your defense of a fellow "intellectual" who makes malicious, personal attacks is reprehensible. This is probably your intention. Driving out dissenters further improves the ratio of "intellectuals" to "Holocaust denying flat earthers" which stifles the debate you pretend to encourage and promote.
Your hypocrisy is showing, glaringly.
Carry on, as usual.