registration page

I recently migrated from VB and have a registration form that I would like to make a small change to, so I have a couple of questions. My current registration form has a required field called "Location (city, state)", as seen in attached image. Right below that I ask what British cars they...

I know about creating a custom user field for the purpose of getting a new field on the registration form. Doing that, however, always seems to create the field also on the user's profile. And if the field is marked "required" (for registration purposes), users who just want to change their...

The registration form has a username validation function. it seems this can be abused by attackers to find out what accounts are present on the site. The attacker can run a script to try millions of possible usernames to get a member list. I have recently encountered such attack on my vbulletin...