Can't really agree with you there.
There are comments that are superior to the article they're responding to. There are books that are better off not being read at all. Forums also serve a few purposes that raw reading material cannot.
I think moralizing the activity brings with it the peril that you may start feeling good about consuming information the "right" way, and feel bad about consuming it the "wrong" way, while what you should really care about is the information itself. How you get it doesn't really matter.
Granted, I don't see anything particularly virtuous or advantageous about cooking your own food, either, so perhaps we're at an impasse...