Admittedly, on the one hand you (and Munchi) are right - since the move to the sub forums it's been less accessible, and less access means fewer participants. On the other hand, though, while the compos are great and obviously videogame related, they are not the focus of this site. Please correct me if I'm wrong, mods, but I suspect that they moved the forums to their own place in order to clean up the home forum.
They moved all sorts of things around so the more focal things would be easier to access (VG WIP forums, Remix requests, Community... offtop ) while the things that casual users are not looking for are put aside. This streamlines the forum experience (yay) but at the cost of less traffic in the compos + album project area (boo).
The way to really fix this is, as mentioned in another thread (which I can't find right now ) is to pimp out the compos that you want people to really participate in. Personally, I do this by posting in OCR regularly and link the compos in my signature (that and the Lufia project - needs more people, btw!). I did it with the ORC for quite some time, and now am also giving the PRC some love, too. If you get even one participant that way you just might be saving a compo from extinction.
You can also advertise it in places like Facebook and such, if you want people to join in on the fun. DjP certainly had a reason to rearrange the forums around here, so I don't think returning to the way it was is an option (not that it's what you were implying, but I figure I'd better head that off, anyway).
Thanks for the compliment, btw - glad you liked the remix