How valuable is a dating mailing list?
 

Just tweaked a site to collect email addresses and possibly referrals.
Wondering just how valuable/useful an email list might be and if I should try to drive a bunch of traffic over for that purpose or if it would be a waste of time. Mainstream internet marketers says lists are gold.....but I know things are a bit different over here on the adult side. You know, dealing with boners and all.

Some sites do not allow spam to be used to sell their product.

But how about the ones that "kind of" do?
Anyone using sponsors that allow email traffic?