http://kekchan42aql5xs7bhhngml4nik4lztprqg4ezoqexs2v7usjenwfyqd.onion/faq.html
After receiving input from other users, if it is determined that the new board would be useful, it will be created and the board owner assigned and notified. If, on the other hand, you would like to take over as board owner of a particular board, the same process should be followed. Create a thread as stated above and make your case for the change.