The Canadian Adam Guerbuez and his company Atlantis Blue Capital were found liable for statutory damages and aggravated damages totalling $873 million to Facebook for sending some 4 million spam email.
Often times, the spammer forges other people's identities. This is usually the best evidence that they are an illegitimate emailer.
Although it is unlikely that Facebook will every see the judgment, it does suggest that there is finally a cost being assigned to these nasty and ignorant abusers of the email service. Note that last week the cessation of ISP interconnectivity for McColo by Global Crossing and Hurricane Electric significantly dropped the total volume of spam.