Limit character set to prevent homographs

[Urz]

[-Mad Maverick-]

I wish I knew what a homograph was so I could participate

[Richard LeMoon]

I am confused. What are we looking at in that picture?

[AbbyTheRat]

Urz is not muse.. but he's some how in a muse clan.

He was able to do this because the M is not an actual M but something else.. a homograph. 

As I last heard.. it's on the list of things to fix and will be added to ban tags

[Omniraptor]

For those who can't quite see it

Ｍuse vs Muse

[-Mad Maverick-]

I thought we were talking about how annoying of a name spyyyyyyy is

[Watchmaker]

I should point out that while this sort of thing is technically possible right now, it is also technically in violation of the community standards re: impersonating Muse employess.  Please report people using such deceptive clan tags.

Urz, thanks for the report, but please change yours.