I hate to admit it, but I noticed the drop off shortly after a certain someone was banned from the site. You know... the guy who was never wrong about anything and took the slightest hint of less than complete adoration of his pronouncements as a personal insult ...followed by self deletion of all his recent posts. Yeah, that guy. If his departure did lead to a fall off of board activity, as it seems to me, then I can only guess that many have gone elsewhere for their regularly scheduled soap opera fix.
He was a really smart guy and I kind of miss him; but of course in my own case I would prefer to call it entertainment appreciation than to admit that I too was susceptible to the soap opera aspect of it all.