User blog comment:BertH/New Forums now available in Labs/@comment-3235402-20121130151612/@comment-10370-20121202004340

We added the "type the name to confirm" because there isn't an undo function when you delete and merge Boards. The Board isn't a real article page, and the information about where a thread used to be isn't stored in a revision table. So we added that extra chore so that people wouldn't merge a Board with 100 threads, realize that they'd made a mistake, and have to move each thread back by hand.

However -- like pretty much everything in the feature -- if it turns out that that's pointlessly annoying or just doesn't work, we can figure out something else. Let us know what you think as you keep using it...