I use the "Login with Facebook" feature, and have just noticed my name doesn't appear here in the forums, but instead the random number the site apparently generated as my user name.
When I tried to change this in my profile, I saw a banner that closed to quick to read; all I caught was "you are not allowed to change your user name anymore".

Not a huge deal, more that I'm curious, but what's going on there?

in project deckbox we have no names, but in death we do... and that name is Robert Paulson

Send an email to Sebi. He can do something to let you change your username.

Sebi just updated it for me.
Just posting this to see if the new name shows.

Yep. That works.

FYI to anybody else wondering the same thing...

I contacted Sebi directly for this, but based on the CC line in his replies, it looks like the team email address is: support@deckbox.org; I suspect that may be the preferred point of contact for admin stuff.
NOTE: The change does not appear on previous posts you have made, but the link to your profile is the same for both names (as it should).