I think that part of the problem is that we're still under-utilized and under-membered. With a smaller group like we have, we tend to not get into the vigorous discussions that we're used to on other sites.
While we have differing views on things, our views tend to be compatible with each other. And as such many of our conversations start out as interesting and end up as "Yeah, I can totally see your point" and then quieting down.
Toss in 5 retrogrades and it's no wonder we're sort of in the doldrums.
When we get our numbers up and can get some more people with differing viewpoints, then things will get more interesting. We just have to get through the "blahs" we're going through and keep plugging this site to others and keep trying to come up with lively topics of conversation.