I used to wonder why Frogboy seemed to post a little less frequently and then I realized that he posts on ALL the forums. So it makes sense that since he is obviously really busy with work & family that we can't expect him to spend too much time here.
Kael on the other hand has been posting more frequently in the last few months so hopefully that will continue.
I think in general though people are getting a little bored with Beta 3 so the conversation has died down a bit. Once beta 4 comes out I bet there will a be a big resurgence.
I check the forums every day so I have you beat : P