uhm, thats even stupider, because then:
1) host is bugged with "will you let ___ join" messages
2) the host will generally become pissed off and just set it to disaprove all mode which means less people will get into games.
Why the hell do you need to monitor who joins your game, with an application even, when you could just let anyone in and ban them as necessary.
Anyways, the hosting permit is more crap, it means more work for badspot, setting up systems to keep certain IDs from hosting and other stuff for hosting permit applications, and in general its just handicapped.