Interesting business model.
Licencing it works like this:
1) Play nice, use it freely under the AGPL 3.
or, at your option:
2) Be a horrible, selfish person and buy a commercial licence for $1000 (personal use) or $3000 (for business, unlimited servers)
@mayel If anything, the missing part of this licencing scheme is that Fox aren't doing redistribution of the money they make, and they're not a coop. They're not very post-capitalist from the looks of it, but anyway... everybody is trying different things, and you can pick bits and learn tricks from everybody.