I'll confess, I use Gamespy selfishly - I've been playing SFC 1v1 against the same player for 6 years (and SFB for the past 23 years...) and we use Gamespy as a convenient way to connect. We've been using a modified shiplist to suite our needs, not that I couldn't switch back...
Most of the time there it seems to me that there's a few people meeting who already know each other as well. And a few conversations I've witnessed have been nasty arguments about so-and-so cheating or not. Not conducive to joining in.
I've told myself several times that someday I should join in some random games with new players, but I can barely manage the time to connect with my longtime archenemy, so I don't know when I'll do that. Maybe soon, I say, and then 3 mos. go by.
Is SFC on Gamespy in danger of going away because of lack of interest? THat might be enough to shake up my routine. I like the idea of a Gamespy SFC community, even if I'm off in a quiet corner by myself.