I've found that spammers latch on to email addresses with actual names in them as they are easy to find. As soon as I set up one on a charity domain that I help run with my name as part of the address then the spam came flooding in as did the emails from myself. All the other addresses I have which are not normal names don't get the same treatment and several of these I use all the time for everything.
It would seem that a non name email address is a lot less likely to get spammed and used than any others at least with my experience.