My last name has an apostrophe, but the site doesn't allow me to use it. It's not that unusual, the forums really should allow for that.
Aah the pain with special characters.
The problem with such often will be, that PCs on the end user side may not have the proper fonts to show them or the proper users to read them - and replacement fonts selected may cause strange effects. (As I work for an international company, I see this often enough.)
Maybe this is one of the reasons, why we do not see Asian names in Chinese language here :-)
Best greetings from Germany
Olaf