Unique User Names
Hello,
I wanted to know if there is a script / plugin (something) that can check the uniqueness of user names... in other words, if we have a user name "John," for example, then I don't want someone to be able to have the user name John1 or JohnABC...
Also, is there a way to have a list of flag words that are not acceptable user names (4 letter words, for example)?
Any help will be greatly appreciated, thanks.
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