Primary domain site hosted by Discourse servers in San Jose is currently in read-only mode. This site may be restored to full service within the next couple weeks, or re-launched on a different server.
This secondary architecture site and the watershed site are still open to the public to create free accounts. They are on less expensive servers so may be slower to load, are limited in functionality, and are not supported by the discourse team.
The watershed is set to stable update branch, however the architecture site is currently on the main first release branch which may be unstable.