Any user can change to an avaiable name, even it wasn't available just a few moments prior. But users should ask mods/the user that originally had the name (depends on if the user is banned or not) for permission to do so.
So yeah, I could impersonate you during name change season, but I of course won't and don't wanna.
I suppose if a user had changed their mind about changing but someone already took the name and refused to change, a mod would have to handle it.
