Meaning, if this is indeed an issue, you would not let these teams grandfather their name
THIS
It would be interesting to know exactly what is being blocked. This does not seem entirely conclusive, because, for example:
allowed: Ø and º
blocked: ○ and °
But we already know that BHG
1) processes strings incorrectly, so e.g. usernames with trailing spaces (due to autocomplete) result in incorrectly colored speedup requests.
So 2) BHG does not clean up the strings properly.
3) BHG designs non-transparent rules and does not explain them, e.g., word filters in chat. If these are also faulty, e.g., overblocking, then support ignores this issue.
Nevertheless, some kudos: they have solved the alliance name input better than chat. The input rejects characters directly. In chat, our text is deleted, which is annoying because we often have to tinker due to the character limit and then the text is rejected for no reason.