In a mere 4 days, Facebook(s fb) antagonist Max Schrems has gotten more than 20,000 people to join his “class action” suit against the social network in Austria.

The suit attacks Facebook for multiple violations of European data protection law and, because every user outside the U.S. and Canada has a contract with Facebook’s Irish operations, most of the world is able to join in. Issues covered by the suit range from Facebook’s surreptitious tracking of people’s web use and weak consent requirements to its alleged participation in the NSA’s PRISM scheme.

According to Schrems, a law student, more than 20,000 people from over 100 countries are now participating. Because each claim needs to be verified and added to the suit, the number will soon be capped at 25,000 for the time being, though others will still be able to apply, in case the suit expands.

“The number of…