OT: getting spammed to my list address

[aklist_bind at enigmedia.com]

Hi All: sorry for the off-topic post, but I was just curious about 
something. I set up a unique mail account to access this list, and within 2 
weeks of using it I started getting bombarded with spam. Is that a function 
of spammers setting up bogus accounts on bind-users and harvesting the 
address of anyone posting? Or are posts on this list being picked up in 
archives and are exploitable that way? Or both? I can change addresses and 
resubscribe but it's kind of a drag to have to do it every two weeks <g>.

I have unique addresses subscribed to > 20 user lists and none of them were 
picked up by spammers as quickly as this address (if at all).

TIA