Take it up with the management:
https://gfy.com/gfy-rules-and-regulat...ules-live.html
12.
One username allowed. Fake usernames will be immediately banned. If it is determined that a user has circumvented the banned user terms laid out below and re-registered with a second username to access the board. The user will have the original banned username deleted!
.........................................
14.
Fake Nick Ban Circumvention If you are banned take it like a MAN! Registering a new nick will lead to that nick being banned and your original nick finding another violation added to it.
dammit.
.