I had let my old ISP account expire (this was the one that was nothing more than a spam magnet). As a result, the spam was mercifully stopped (to be precise, even legit emails would not have made it through). I finally got around to renewing this account, and lo and behold, 36 offers to enlarge my you-know-what's size!
The sad truth is, I was actually missing these emails. Quite comforting to know that someone, somewhere (even if only a spambot) cares about me and the state of my love life/personal finances/software needs :-)
God, I am such a loser.