No, it is not ALL about you Robert. People go where they want to go to meet others, if people start hanging out with their friends at the coffee house rather than the bar as they had for years it is because they now like the coffee house better, it is not normally because they have it in for the guy who owns the bar.
You massively changed a2k, which was always going to massively change the culture, pace, feel of the place. A lot of folk decided that it no longer works for them. Which would be fine, if new people came in to replace them. This has not happened.
The new a2k is too complicated, and for some reason the new interface has made it a much more brutal place. I myself don't mind too much, I like the wild west saloon atmosphere that we have now, but a lot of people do mind.
And while I am pretty much the only one who has spoken of this, In think that the way you went about the change contributed greatly to abandonment. You launched the new a2k without getting the advise and consent of the membership first, and then after it was launched you got all pissy at those who had objections to the new a2k. You then flat out said that you did not give a **** about the community. BIG. BIG mistake. Along the same lines is not having messaging. You were told over and over again that this is something that was highly valued in the community, but you did not make it happen. Again disrespecting the community.