Sure, he's not really serious about that. But I think it's not improbable that many publications will start charging around the same time. The competition factor is overrated, IMHO - people who really want to read the Times will pay even when the Post is free, just as raising the print price to $2 increased revenues even though it's freely available online.
It's clever though, that's for sure. But like most typical layman attempts at 'hacking' the court system it would probably fail. Judges are not nearly as stupid as people seem to take for granted.