Yay, this will work for ranksets, assigns users to rank groups (for custom rankings like Army, Star Wars etc.) Now for one without email validation...

It's case sensitive and it's working on my gold site.

What would the use of this system be? Could I use this to say put Females in a Female Usergroup and Male in a Male group and then search for a user by sex? if that was the usergroup?

I have a private forum for women and one for men. This gives my users access to those groups. You could use it for whatever floats your boat though - not just gender. You could check to see if people like peas or not. Or, you could sort people into clans at registration time. Whatever your little heart desires and is capable of coding ;)

Good deal, I didn't think about gender related forums. I am working on something and you just gave me an awesome idea. Thanks bro!

so it can work with only one choice..?

what if I want "male" "female" "couple" to create 3 different usergrups?

TIA

This hack is great what ive been looking for, however have a question. Currently i have two clans running on my board, both require validation before you get moved into the secondary usergroup. Will this hack automatically bypass this or simply add them into the que, and if it does bypass is there anyway i can make it so it simply adds them for auth by the group admin

It bypasses it as written. It wouldn't be a major deal to add them to the queue instead.

Not working for me in RC3 - would image verification interfere with this or anything?

No and it's still working on my site which has used every version up to and including gold. Check any edits you made to the plugins and ensure the fields and cases are correct.