Nope - works just fine. The main problem with people not getting the confirm email is spam filters and the confirm emails get caught in them. The second most common problem is bad emails.
If a registration email does not make it to the email address that it was sent to it will bounce back and I will get a copy in which I register the user at that time. All the people that say unregistered either ignored the confirm or the confirm got caught in a spam filter and got deleted.
Ghan has said he has fixed this. Monovertex please confirm this fix. This was only a problem with people that had signatures in the upper levels like not the special members but the respected members.