Threads here do get replies (as you can see here), but most anons just aren't in the habit of starting new threads themselves.
I usually only post here when I've got something to post about, and that happens not to be the case very often.
I do agree that it's a pretty comfy place though.
>>2
I tend to dislike IRC because I feel obligated to make myself familiar with the names and personas of the frequent posters. The social element just finds a way to detract from the experience for me. It's possible that I simply have not found the right places, and that there are servers out there that I'd enjoy.