For Username error related to keyword blocker - show user which one is causing issue.

I tried searching for this idea, and couldn’t find anything so apologies if this is a dup request!

We had two users yesterday put in support tickets related to why they couldn’t use a specific username. 

One of the user’s first name was Shelly that was getting blocked due to the keyword “hell.”

The current error message doesn’t specify what part of the attempted name is the issue which was causing frustration as users tried several combos and variations without success.

My idea would be to add to the message “username can’t be picked as it is using the blocked word “insert here.”