You guys want to keep on track with what you have already started? Here's a suggestion, takeit as you will...
Make a designated day of the week.. or say posts from 6 hours during that day... 8 hours during that day, etc.. Where you answer any and all questions and explain your experience in the industry so people know where to start asking questions at. This would help draw in the newer webmasters who want to learn, not so much draw them in but get them registering to post in that thread. Once they register they post more... Once they learn more, they share more ..
You get the idea
Also having people like Earl Miller do it every blue moon if he has the spare time would be amazing.. Food for thought