Flixster is spamming me - how not to do opt-in marketing

This morning when I looked at my gmail, I found about 30 emails from Flixster, a site that I once signed up to in order to test their Facebook Connect implementation. When I signed up, they asked me to import my Gmail contacts, which is fairly common practice right now. Once that was done, the spamming started: they preselected all of my gmail contacts for an "invitation" - consequently, I invited no one. Now it gets worse: although I never authorized this, Flixster remembered my contacts for me (not good practice!) and now sent me these lovely emails suggesting I "might know" these people - of course I do - they're in my gmail address book....
I'm a big fan of the viral loop, the famed viral coefficient and the power of referrals - but please play by the rules, don't abuse the trust that people extend to you and most importantly - don't spam people!

Stop spamming me, OMMA!

I'm registered for the OMMA conference in New York right now. They are supposed to be an industry leader and are breaking one of the biggest rules of permission marketing - don't abuse the user. Since yesterday morning I have received a total of 7 emails from them - although I hit unsubscribe after the second.
Yes, according to CAN SPAM they're ok because they have a few days to take me off the list - but it's highly annoying and I don't want any of it.
Play by your own rules, OMMA!