No one mentioned deleting, as the post you have been linked to says the only option you have is to make a new forum account using a different email address
The only Option i have is to do what the planeshift forum rules say !
If the rules says, that the admin can change my Username, then please do it,
otherwise reply to this thread and say that i have to delete and then please
delete my Account !
I waited at least 3 weeks during no admin deleted my account.

Regards Markus