Well I guess what I've noticed is that even the core community, folks that have been playing these games for a very long time, many of them devs and moderators, rarely make an appearance these days. So it doesn't seem to be confined only to those "normal" players who are only interested in what's new. The disinterest, IA notwithstanding, seems to be with players across the board. Please correct me if I'm wrong.
If anything, I'd expect player counts to be higher around now since there is a relatively new mod out there(BFD), and a newly overhauled one(TSR).