Speed, we thought about this. Three problems:
A: It's perl code. Anything can be added or removed. To some degree that is why you are all here and why the UBB is so much fun to you all.
B: Crack sites. It would be about 15 minutes if even that before the code would be flying to all the crack sites.
C: It adds a layer of complexity for legitimate users that wouldn't make a whole lot of difference because of A: and B:.
