From what I've seen, there's still a healthy amount of for-sale stuff in the fora. What's definitely gone are the "feeler" ads and the really exotic stuff (the left handed, 9 string, semi-fretless Shudera an Trolembic with 7 band parametric eq, spalted truffle root top and laser etched in a paisley pattern walrus ivory fretboard).
Edit: and of course, really clanky, ugly American basses that fall to bits (both authentic and otherwise)