You have to remember that RR is primarily a  3d Arts site!  Because of this,  there are now  ALOT of 3d artists here who have digital cameras.  Since many of the artists  have a "following" on the 3d side, it overflows to the Photo-gallery too. 

There are other reasons probably too. For many vacation/holiday time/real world commitments are a factor.   Gettin wrapped up in view/comment count is counter productive (pardon the pun)  as there will always be images you personally feel deserve more attention but don't....while the image posted right next to it with a nudity or content advisory racks'em up (y'know the T&A factor)  Hey, its just the nature of the beast!

Just enjoy and learn from those that INSPIRE YOU!!! 

My 2 cents...and some pocket lint 8)
Joe