Why reinvent the wheel when there's already a perfectly working mechanism in place to show/hide part of the forums list?
(Try clicking on the - icons next to a board category name if you don't know what I mean...)
I for one will probably be interested in both DROD and DROD RPG topics, and only ever having one of those two categories visible means I'll have to click back and forth between them, when I could have them in a nice collapsible list that can be shortened with one click if needed.
Also, tabs in the middle of a list are just bad UI form IMHO. If anything, they need to go to the top of the list, but since there'll be DROD, DROD RPG and shared boards it'll just get messy anyway...
Just my 0.02 EYPO...
np: The Cinematic Orchestra - Man With The Movie Camera (Live At The Royal Albert Hall)
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"
I'm not anti-anything, I'm anti-everything, it fits better."
- Sole
R.I.P. Robert Feldhoff (1962-2009)