Well, writing what sells in fandom means you care about the community interaction and your place in it. Writers that everyone reads and loves get more power (when power is the ability to convince people to read you/interact with you/heed your advice if you ever give it), but they also get more comments (and comments are the only sure consequence of that power--everything else is hit and miss); and comments, in the end, it's just community interaction. I find people willing to put themselves into work they don't exactly love for it weirdly endearing.