It's pretty much a game of cat & mouse. The spammers will find new ways to spam on Facebook and Facebook will continue to combat it by changing codes etc.
But when Facebook gets really mad cause the same spammers keep coming back, they'll contact their legal team who will contact the CPA Companies which will result in people not getting paid or banned from their networks and then the CPA Companies will ban Facebook traffic or face lawsuits from Facebook.
The CPA's might even turn over the marketer's info to the Facebook legal team and the marketers will get C&D's showing up in their mailboxes.
Overall, Facebook's legal team is not somebody I'd wanna mess with. I bet they can afford better lawyers than me.