There's a disconnect error code # directly related to high traffic/inadequate servers. Either I wait MINUTES to engage a random match, or they kick me off NWFC within 30 seconds of seeking.
Brawl is already back to outselling MGS4 on amazon weekly charts. And if Nintendo/GameSpy hasn't done any upgrading (very likely, cuz they are the suck), the increased user traffic defintely doesn't help.
I've had more trouble getting random matches lately than I did back in April.