I really like that idea. I work with a system like that and whomever I bring on board I am responsible for.

That site is very specifically invite only, here where it is not... it is still an option. There's talk of an internal platform verification being worked on (I am not 100% on details). I am positive that I also heard it won't be mandatory. So whats wrong with offering a third option... a karmic invite you can grant, but it ties your account in very real ways to theirs? I love it