Meh, we brits have it wrose there are hardly ever any admins on when we are so we have to deal with them all the time.
Obviously you can stand it or you'd be gone by now. Indeed. Although the $200 option is only applicable to the forum-going-down-for-5-minutes problem, not the spam problem. It actually wouldn't solve the spam thing.
Spam Bot Solution Why not create a sub forum under "Forum Discussion" called "Bot Catcher" or something. The second an account posts in there it is banned and if possible, all its posts are deleted. Create a sticky in there so that normal people know not to post in there. If they do, it's their own fault.
put a picture thing upon sign up so they cant get it right and cant sign up there is a vbulliten add on for it
Put an anti-spam question on the sign up sheet. They're getting to be quite the proverbial pain in the pimply posterior.