compare this to GD

Well, I think one of the goals of Boards is to not have a GD. At least, not the same way we have one now.

Instead of thinking of any of these specific boards as GD, think of the whole Boards system as GD (this is the equivalent of this), and think of the Sub-Boards as just a way of categorizing your posts.

Now, that being said, there are posts on GD that wouldn't fit into any of the current categories, which is why we need things like an "Off-Topic" board.