ATM, we have two functional combat routines which haven't required much updating, so I suppose there hasn't been a need for much activity in those threads. Per other content, I've actually been rather impressed with some of the recent community additions to help with dailies, new areas, etc. Kicks originally created the first questing profiles, but he stopped working with SWToR some time back, so others have been doing their best to both update profiles and create new ones since that time.
The game launched with much fanfare, as does every MMO, and then settled in with a respectable ~1 million players, then dipped from that number, and then surpassed it again after the move to FTP. It's all part and parcel of the modern MMO. The player base here was always going to be smaller than WoW; everything (PTP) is smaller than WoW, even as that behemoth slowly declines. There are definitely more than enough players to make the game worthwhile IMO. If you prefer to play on an especially crowded server, I would recommend The Harbinger.
Cheers,
-D