Allow me to contribute to the discussion: This is particularly directed towards the powers-that-be who can/will provide us a dedicated sub-board-thingamajig. Surely, you're thinking: "WHY DO THEY NEED SO MANY THREADS!?"
Well, it can be a bit complicated ...
NEW PLAYERS THREAD: Intended as a "one stop shop" for any interested future players. Will contain a brief description of the game, links to the world map, wiki, and other sites of interest.
NOTICEBOARD: If you play MMOs or other such online games, you will be familiar with a "client" or "launcher," a game's "front page" so to speak. The Noticeboard serves that purpose - it lists major announcements that are not related to battles or movement.
BATTLE ANNOUNCEMENTS: This thread's sole purpose is for the Movement Judge to list the upcoming battles. No other posts are to be allowed in this thread in order to simplify finding specific information or an individual's responsibilities for that turn (should his or her army be engaged in a battle). It can be argued that the BATTLE RESULTS page could be merged with this one for simplicity's sake.
OPEN STRAT MINIQUEST: Please refer to my explanation
here.
PORTAL, BASE, TOWN, AND OTHER BATTLEGROUND DESCRIPTIONS: This is exactly what it sounds like. Each Phyrexian Portal and Coalition Base is a unique stronghold which presents formidable challenges for any potential invader - imagine a portal surrounded by marshes filled with noxious fumes and wailing undead, for starters; defenses become more ridiculous the deeper you go.
Towns are valuable locations on the map which offer reinforcements, sometimes making them crucial staging areas for smaller armies to congregate around. These, too, have their own unique defenders that are hostile to both sides and gaining its resources/bonuses require conquering its inhabitants.
Other battlegrounds are essentially just that - descriptions of plains, islands, swamps, mountains, and forests as to remove all doubt when it comes to writing strategies on such terrain.
PHYREXIAN COUNCIL and the
COALITION COUNCIL: Central discussion hubs for either side. Ideally, posting would be limited to the faction's specific members, but daring raids by the dauntless (like yours truly) on enemy boards occasionally happen. Topics discussed usually involve promotions/demotions, new player introductions, and general in-house small talk. Battle plans are made in private boards that are outside of NGA to prevent revealing the super secret stuff.
As Pacone mentioned, the Coalition once had seven councils (White, Blue, Black, Red, Green, Artifact, and Gold) and each had its own thread. I am inclined to agree with his assessment that that's overkill: Currently, and for the foreseeable future, we have no need to have so many separate threads. One will do for the entire Coalition.
And last, but not the least,
THE CLUB: SHENANIGANS APLENTY! Anything goes in this house of debauchery, this field of flabbergasting, a temple of sin. TGL is its erstwhile bartender and CoS the trashy, redneck lounge lizard. Grammar Ninjas make rare appearances and noobs are openly (but lovingly) bashed. If we were to be given one thread, make it this one. Yes.