Probably because many of those who "play for the fight" are at times highly vocal and derogatory of those players who prefer aircraft that were not designed for the dogfighting the "play for the fight" players prefer. Especially when they fly their aircraft to it's own strengths rather than to the expectations of the "play for the fight" players.
(Caveat, the answer above is general in nature, I read through only the first few posts in the thread that prompted this one early this morning, and haven't read the remainder yet).