I think there really should be sub-boards for Utility mods and Libraries (currently buried in Modding Resources), Gameplay Mods and Faction Mods; this would tend to de-clutter the board quite a lot. I'd say Total Conversions, but frankly the only one extant atm is the only one that's likely to exist for a while; I doubt if TC authors will re-appear until the game is in Beta.
It's a shame that so many Faction mods are effectively moribund atm, due to changes to SS under the hood, too; we really should ask the authors, through the board, if they'd be willing to at least release the content for general use, so that somebody can come along and revive the mods later.