Forums → Support Forum → Finding Friends Using E-Mail

So lately i have seen many topics about friends asking "How could we find a friend?" or "We need a user finder".
I think there could be a better idea that could involve less coding.

OK so take this as an example.
Evey user has a e-mail that needs to be used to activate their account.



If their your friend you could ask for their e-mail and on AG maybe there could be some sort of User/E-mail finder where users can be found using their E-mail.

What do you think about this idea?
I know it has their good and bad points and i want to see them form YOU.