Livre d'Or

That's a very good idea. I've mostly not encountered my actual friends insisting on using racist terms in spaces (physical or virtual) where I have authority. What I'm more likely to get is people making impassioned arguments for the right of hypothetical racists to use whatever words they like, because omg censorship!, even though the speaker would of course not personally want to use a racist term.

Also there's the area of politically incorrect terms which are not completely taboo; I personally am much much less strict about what standards I expect from other people than about what terms I'm willing to use myself. But some people are angry with me for even saying eg "people with disabilities" without stopping to check what I think about them saying "the handicapped".