it seems to me that its only natural that his comments should drop for the simple reason that people that spam a comment section up into thousands of coments have the attention span of gnats. you know all those 'dewds that was teh best EVAR !11!!' kind of commentators? they have slithered off to the latest and newest 'thing' on the net to continue their crusade of pointless commenting.
those of us that are left still enjoy the reviews, i watch them every week, but dont feel the need to comment on them much. after all there isnt any real point to adding my opinion that no one will care about to a list of other peoples opinions that no one will care about is there? (im aware of the irony of this very post). i enjoy his brand of humor but that very brand doesnt lend itself well to actualy 'building' a community. hell his very attitude is clear he doesnt give a shit WHAT we say about him good, bad, or otherwise so why bother commenting on his work when he doesnt care what you have to say about it? its not like he will hop online and post a reply to you when you call him a ball sucking sperm burper. there is really no one to comment to but each other and there are far better forums on this sight to talk about things than in comments section of each video that is just flooded with halfwhits that cant resist hitting 'post' just to let the world know that you though this reviews was shit/teh graetest EVAR.