I can say that I haven't yet seen any examples of that kind of behaviour at QOTO, and I would not expect to based on the quality of the dialogue that I have seen.
Why not remove or amend phrases like that in the about page if they are not true in practice or even according to the ToS? "No censorship" is mentioned in the first few lines and it seem to be misleading more than anything.
@freemo But racism is a set of ideas that is censored here. Slurs are only slurs because of the ideas they represent.
@shakha Because we are free speech. The meaning of these terms are not "anything goes no one will ever be banned".
The concept is that ideas and philosophies are not censored, that is the heart of free speech.