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XF 1.3 RegEx Username Validation?

I run a music community and one of our forum rules is you are not allowed to end your username with a capital "P". The rule may seem strange to outsiders but we implemented it because people were misusing the honorific "-P" (standing for "Producer") and it had lead to drama in the past.

Is there any way I can enforce this rule with RegEx or the "Disallowed Text in User Names" function?


XenForo developer
Staff member
The regex is always case insensitive, so you could only prevent "P" and "p" as the last letter. (That would be done with: [^P]$ )