I'm on that intersection as well, and I share your frustration about the multiple meanings the word 'fandom' currently carries. I wish it wasn't so much about 'sides', because all types of fandom — transformative works, and attending-cons-and-being-involved-in-professional-SFF-books fandom — overlap. I saw Hugo Award-winning authors discussing participating in Yuletide, just recently, for example. Both groups care deeply about stories, and often these are the kinds of stories that aren't considered high art, prestigious, or 'literary'. I read and write fanfic, but I also attended Worldcon, and I know at least ten other people through friendships on Dreamwidth who are exactly the same. It seems to me that there is a vocal minority in each group who really has a problem with the other kind of fandom, and everyone else just wants to get along.