Max thanks for the demo, if it was exactly the same but instead of giving the user an error and making them backspace you replaced or reformatted the characters, but still showed the help message. 



Jared Zimmerman  \\  Director of User Experience \\ Wikimedia Foundation               
M : +1 415 609 4043 |   :  @JaredZimmerman



On Wed, Jan 8, 2014 at 7:18 AM, Bartosz Dziewoński <matma.rex@gmail.com> wrote:
On Wed, 08 Jan 2014 02:14:16 +0100, Jon Robson <jdlrobson@gmail.com> wrote:

FWIW I find the fact we support case insensitive usernames extremely
confusing and a bad user experience that we should try to rectify -
both 'Jimbo_wales' and 'Jimbo_Wales' users exist leading to all sorts
of confusing and unnecessary mistaken identity editing possibilities.
I know of no other websites that do this and it makes sense not to...

Registering such usernames is, as far as I know, currently blocked by the AntiSpoof extension. (Administrators can bypass these restrictions if they wish to.)

--
Matma Rex


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