I just deleted close to 30,000 inactive accounts with zero posts. Judging by the IP addresses, the vast majority of them would have been spammers anyway.
Sorry for deleting your account if you were just a lurker. Since I will probably do regular member cleanups, maybe monthly or so, a good way to retain your account is to just post one thing in reply to somebody.
Arrrrgh... Also, apologies to Adam Ant, who I accidentally axed, alas. (I think you only had three posts from a decade ago though...)