Why don't you try using Google and looking it up before angrily speculating?

The Enforcer system is what the use at Penny Arcade Expo. It's a volunteer system to help run the event, and in return you get to attend things when you're not on the roster. It's no different to all sorts of roles, be it grad students being a student volunteer to attend a conference (and if you want to talk about underpaid, grad student is where it's at) or teenagers picking up trash after the Glastonbury Music Festival.

No-one is being pressganged into being an Enforcer, it sounds like a pretty sweet gig to me.