Well, I don’t think GD is not “worthwhile” … I still post there. But the quality of discourse is on the way down and has been for awhile.
I reached this conclusion when I thought back to my first impression when I came here five years ago; that every damn person on here was smarter and better-read than I. An idiot would pop up here and there, but it was mostly post after post of people saying smarter, wiser and wittier things than were in my head.
Now I feel like it’s almost the opposite; I have to weed through the dreck (the “ignore” function helps) to find someone whose point of view really challenges me to question my own ideas. Again, it’s not that there aren’t still vibrant exchanges of ideas … it’s that to get to them you have to endure tons of “Bush is a monkey/Kerry is French-looking” level discourse.