sigh  
Place up as many theories as you want.
The only email address that will never get spam is the email address that never communicates (either way, sending or receiving) outside an internal network.  (Even then, if the ladies in accounting get your email addy, you'll get forwards up the wazoo.)  But, seriously, that's the reality of the internet.  The only safe email address is either an uncreated one or one that is an internal-network only one.

Sitemail | Freestuff | Craftythings | Youtube|

Knowledge is knowing a tomato is a fruit. Wisdom is not putting it into a fruit salad.