The owner of the site is AWOL.
Pokemaster is the only one who can open name changes, and he hasn’t the last few sessions. He hasn’t been online or updating the site much the last few years, and has been unresponsive on attempts to reach out.
I’m sure he’ll open it when he comes back…. Or if we get #fizzforadmin (both unlikely).
To change your username outside of the name change period, you can by going to another section in which you have no activity, and edit your profile. This only works if you haven’t posted anything, or commented anything, on one of the sections.