Since the announcement of Diablo III, there's been alot of buzz in the Diablo scene lately, and I think a Diablo 2/3 section would bring alot more traffic in.
Anyway, here's a small quick layout of what the forums can look like:
Diablo II Forums
- Open Battle.Net
-- 1.12 Character Editing (This can be explained in more detail if need be)
-- 1.09 Character Editing (Since quite a few people still play in the .09 area, can explain this as well)
-- Editors, and Programs (This would be for the stuff like ZonFire99's Editor, a new Diabolic version, etc.)
- Closed Battle.Net
-- Character Builds, and Guides
-- Trading (Only on Closed B.Net since trading on Open is pointless)
--- USEast
--- USWest
--- Europe
-- Hacks, Bots, and Guides (This section can almost be setup the same as the WoW section, although it would consist more of packet editing, than memory editing)
- Modding (DII has alot of things that can be modded, I can explain this in more detail as well)
Diablo III Forums
- General Discussion (Not much else to D3 yet, but it needs to be here anyway!)
I can personally fill all the forums with information easily within a week. (Except for the trading forums)
Let me know if you need any extra explanation on anything.