FWIW searching titles for your mother while restricting to user section only would show both variants ( but also supersets like your weird mother )

Edit: knowing about similar usernames might be of interest though.

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
Je suis Charlie!

In reply to Re^2: Add "is this username available" instructions to "Choosing a username" page in PM FAQ (horse shoes) by LanX
in thread Add "is this username available" instructions to "Choosing a username" page in PM FAQ by GotToBTru

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