From something I deleted was a suggestion that some people were ignorant of the latest and greatest in rocket mass heaters. I would like to offer the other perspective: there are hundreds of people submitting their designs for freakshows of flaming death and calling them "rocket mass heaters" and demanding a blessing on the design. Some of them even have fire running through them. Some of them even roughly resemble a rocket mass heater. The shear volume is unnerving. And, naturally, each "innovator" is sure that their design is "THE latest and greatest in rocket mass heaters." Naturally, these folks want to have a private discussion and they have no idea that there is a parade of folks also wanting a similar private discussion.
I don't know about E&E, but for a lot of these, I see several hours going into a discussion about their designs, and then after I have conveyed my thoughts, the other party comes to the conclusion that we are now best friends and should talk every day on all topics, plus work through some more "design improvements."
I spend about 8% of my life on rocket mass heater stuff. I think E&E spend about 55% of their life on rocket mass heater stuff. And a lot of time is spent on "how to do the most good with the limited amount of time." And a lot of that comes down to trying leverage four hours to reach thousands of people instead of using that same four hours to help one person (who is utterly certain that they are really helping us).