There's a Gateworld podcast involving what it feels like to be a Stargate (and Scifi) fan, #38 from the list, and the most recent podcast briefly discusses this. What I gathered from these is that it'd be great if we could accept differences, and each walk our own way, feeling comfortable with who we are.
One thing I've noticed posting on this forum, is that if I criticize a show with humor, I can expect a quick challenge, usually on the accuracy of my knowledge of the show (and often the inaccuracy was intentional ). I suspect that we sometimes identify with art, it's like a symbol for us, and any jest at the symbol's expense becomes personal. I also suspect that for many fans, including myself, we've been the target of stigma at some point, so while I might mock relationship threads, for example, that could feel like being the target of stigma in the school yard.
I suppose that's why fans come together on this site, to find a haven for talking about scifi. However, I'm not really clear how people use humor, in a friendly way, on this forum. For example, if I were to talk about the Goa'uld Anubis being Darth Vader's apprentice, the Emperor-in-training of Cheese, I'm sure I'd get some solid kick-back. I guess I just expected more humor in return, rather than distress. - Grr