I've never really posted a ton, but enjoy skimming through the topics for a few minutes to break up my day. I do click less on the 'racks vs panniers' etc threads as time has gone by (I know what I like, and doubtful that I'm going to convince anyone else...) but I still appreciate some of the new light/equipment threads that pop up, since I don't really pay attention to new stuff but like to have it sometimes
Mostly, I like to see threads about other peoples commutes/experiences. That, and drool over some of the shiny new commuter rigs people post