I think I spent at least an hour on PM each day, even during weekends. I notice that if I skip a day or two, the "Newest nodes" section gets filled up, and there is nothing I can do but to lie with the button: "I've checked all of these". I've seen some monks present all the time (probably virtually with a script?), and some answer at least half the questions (I guess there are typically around 30-50 questions per day?) How do these people do it? don't you have a life? actually don't you have other languages to tend to? I have at least java and python, and recently PHP and ASP!