Unable to join KDE matrix chat rooms?

Is anyone else able to access any of the KDE matrix rooms? I just tried joining the general one to ask questions and got an error:

“Registration has been disabled on this homeserver.”

Afaik only KDE contributors can register on the kde.org matrix homeserver.

You can register an account on the matrix homeserver (or others) and still acces the KDE channels.

For reference: Matrix - KDE Community Wiki