I want to create a user account on my multi-site installation of Wordpress with a username less than 4 characters. But since Wordpress has a limit of usernames at least being 4 characters, this error message is shown:
Username must be at least 4 characters.
I found a solution involving a mu-plugins folder in the wp-content folder, but it doesn't work. Is there any possible way that would allow me to create a user account with a username less than 4 characters?