Dissalow all caps in usernames?

[spiros]

I.e. if x number of all caps detected then auto convert username to lowercase.

[Colin]

Isn't this more of a mod request or coding discussion question, Spiros?

[spiros]

Indeed, sorry, I have no right to move.

[Colin]

Not a worry, coding discussion or mod request?

[spiros]

Coding I think; if anyone wants to mod it though, I would not object

[IchBin™]

You might want to provide more details for anyone who wants to help you. Do you want to check this on registration? Do you want to check it when people change it in their profile?

This would be the kind of code you'd want to use to check I suppose. Just depends on when you want to check it.

if(strtoupper($username) == $username)
    $username = strtolower($username);

[spiros]

Well, for both cases really, so that only the first letter could be allowed to be capital.