Accents In User Names

[Denim&Venöm 19,094]

Just tried to edit my name to include an umlaut, the two dots you'd see over a vowel. But the system won't let me. Why won't the system allow for accents and marks to be added to user names? 

[Jeric 46,852]

This may have been a recent change. When they initially upgraded the Forum, symbols and accents were used by several members. Lemme check something.

Yep, tried a few things that worked before, including a display name change bug that allowed someone to use hidden characters or spaces to use the same display name. They throw an error now. 

[The Recherche 29,968]

I experienced this as well. "Recherché," is the proper way to spell my username, but the acute e wouldn't register.

Hopefully this gets resolved at one point or another.

[Rikifive 24,192]

Apparently that's how the character restrictions in the usernames are set.  Judging by what @Jeric said, I suppose these restrictions were set by administration on purpose, to prevent from abusing that feature. Are members to blame here?  Just kidding!  

I believe only the basic characters are allowed, due to ease of setting these. The rest would have to be specified manually, one after another, hence their lack (?).