I've been trying to get on gamebattles recently, did a couple scrimmages with people there and with some people here on the SWF Friend Finder. I'm doing fairly well.
I'll try smashranks site I guess. Friend Finder is so laggy for me and I'd like to try something else.
Projectile spam can get annoying, but with Wolf (who seems to be the most popular character with a projectile) I find it somewhat easy to punish, if the player is foolish enough to try a series of 2 or 3 shots, with a down air. The range of the hitboxes on the down air are rather deceptive, they seem to stretch out a little farther than his feet would let on. After a quick dodge, block another incoming shot, and if they aren't fearful enough to stop shooting there, you should be able to get a jump off and hit 'em with it with some proper spacing and a little luck.