I received a few e-mails that Thistledown was experiencing problems, but I was unable to personally verify them. Now that I have to time to check out the world, I see that we have a new popup in the Lobby.
This world is down for a restart. ETR 7:00PM PST
So thank you for all your e-mails, hopefully the beleaguered server will be back up on time or earlier.
Update: Thistledown is back up and running, although there was a rollback due to some of the difficulties. Some have guessed that at most an hour was lost, but that seems a bit on the high side.