Tigerboard.
A genuine thanks to ChinaTiger, today, he did the research to find out the Politics board has been the most active board of all of Tigerboard.
http://tigerboard.com/boards/view.php?message=19161359
Politics board has 7007 pages of posts since 7/18/16 (now at 7008)
From his numbers earlier today:
The Shack has 5185
Football has 4294
Bball has 3384
Poker has 4