Usually there's a link at the bottom of the Paizo forums to Archive, where all of the old posts for Dungeon magazine live. I reference the wonderful Age of Worms forum there a LOT, so I hope this isn't a permanent deletion or preview of deletion to come.
It looks like I can still access the Age of Worms, Savage Tide, Maure Castle forums by doing searches for those topics and wading through pages of posts until I see something posted in the subforum. So it's all still there, but without an Archive link really hard to find.
Please bring back the Archive link!
Well, never mind. It just reappeared again. Carry on.