This forum has been running in some form since the late 20th Century. I'm sure you run a dozen of forums that are still getting tens of thousands of posts a year, but its actually difficult to run a forum for over ten years and maintain a constant level of posting in the thousands of posts a month.
I'm sure it makes you feel swell to believe your premonitions have come true, but this just shows me that the likes of you can be convinced by any old prophecy. Forums have a finite life span, and there are always some people that think the forum is doomed to die. Eventually those that speak of the end of a forum will inevitably be right in almost all cases. So patting yourself on the back for being partly responsible is kind of stupid and arrogant.
What you spectacularly failed to do in your analysis is show a causal link between Percy's attitude and the current topics of discussion. I've been around these forums a little longer and occasionally things quieten down and seem to focus on one area (ethics, homosexuality, politics or the bible) for a while.
But you have a problem with Percy because he didn't treat you and your attitude with the deference you thought was due, and now you are trying to find vindication that you were right and Percy was wrong - it's quite pathetically transparent really.
Unfortunately for your ego - even if EvC closed tomorrow, it would still have been a successful long term forum. Seeing the stats at the top of the page must really upset you!