I like discussions in general even if I don't always want to join them. I think it's quite interesting to hear what people like and don't like, as long as they don't think that their fetish somehow way better/justified/morally superior than anybody else's.

Even discussions about the relative merits of different artists can be interesting.

Well, except statements like Onix>Drabok and similar. Would that mean that he is fatter than me? Possible, but doubtful.