I recently canceled all my mailing list subscriptions because I was never reading them, and they where starting to take up large amounts of space. After that, I noticed that almost all spam addressed directly to my email address disappeared. I only get about 1 every 2 weeks to that email address now, when previously I got 1-2 a day.
So, has anyone else noticed this happen to them? Perhaps the mailing list servers are compromised?
EDIT:
They where open source projects, like Debian, Horde IMP, and exim. Not commercial lists.