Email (not name) as username

I am building a site which doesn't need a username so I have removed it from the registration and set login with email, this works great!

However, when a username is not entered at registration, the name of the user is used for the username. This seems sensible at first but it stops 2 people with the same name from registering as there is validation which tells the second person "User name in use"!

As we know, people share names so this will not work in the long run. What would be much more sensible would be to use the email address as the username as this is globally unique.

Another option would be to remove the validation from username if it is off but this would then allow duplicate usernames which could cause problems in Joomla.

Have I missed a setting or is this a real issue? I'm happy to do a quick hack for now but I think this needs to be addressed properly.

I am using J2.5.9 and CB1.9.

Many thanks.

Working as intended, if username is missing it'll use name, if name and username is missing it'll use email. You can use CB Auto Actions with after registration trigger in a Field action to change username to

OK, it may be working as intended but I am saying that this approach is flawed.

So basically, if you allow people to register with just a name and email, another person with the same name cannot register without changing their name.

Is this what you intended?