I run (as in, have the server in my room) and admin another, much smaller forum. We ALWAYS give several days' notice before any forum downtime, and gave weeks and weeks of very very visible notice before changing its URL. I would think that a much larger, economically-minded forum would be at least as considerate? I know that people have said there was some sort of notice, but obviously it wasn't very good as most people had no idea there was going to be downtime at all, let alone a website change. I'm sure I wasn't the only one over the last few days periodically checking to see if forum.dog.com was back online yet. 
Not cool, guys! If you decide to do something similar in the future, could you please make more of an effort to let people know beforehand? Obviously it's not a life-shattering big deal, but making big sudden changes without first letting people know makes forum-goers feel disrespected and unimportant, which is not a good way to make them want to visit the forum or master website.
Also, I hate the new layout - the side bar on the right is waaaaay too big and it's too hard to read thread titles!
/complaining off
/but still peeved