I think the "LWer" appellation is just plain accurate (but then I've used the term myself). Any blog with a regular group of posters & commenters constitutes a community, so LW is a community. Posting here regularly makes us members of this community by default, and being coy about that fact would make me feel odd, given that we've strewn evidence of it all over the site. But I suspect I'm coming at this issue from a bit of an odd angle.