I have an email address that had never gotten a single piece of spam before the mt. gox breech. I've gotten 7 total spam since then, though 2 were duplicates so only 5 unique pieces. Of those 5, 4 were bitcoin specific - the remaining one was a scam or phishing attempt offering "2% loans". So while I have no doubt that list will make it into general purpose spam lists after a while, it doesn't seem to have quite yet.