robtillaart:
I sorted the section programming questions on #replies and found out that 22 pages of the 703 has had no answer (0 replies). That is 3% (acceptable?) ...
Personally I rely on the email notifications of new topics, which seems strangely faulty. I get notified of about one in four. So I will reply to existing topics (to which I am automatically subscribed), then new threads of which I get the email notification (which proves the notification feature is turned on), then browse the Programming part from time to time and see a whole lot of other threads. If I see one with no replies I'll usually try to help, but sometimes just think "I'll let PaulS deal with that one." 
(That's because I think he has more patience than I have).