Steve,
I must take exception with your characterization of Jeffrey's post as being "...slightly over AUGI's guidelines" re commercial. Any regular reader at this forum will find an abundance of Jeffrey's posts with good solid knowledge and a helpful attitude. As most long time posters here, This body of posts in the aggregate counts for something of a reputation--judge for yourself.
I interpreted Jeffrey's question and speculation as suitable discussion topic. And yes, I would be interested in avi on rendering(Jeffrey must do this stuff in his sleep) or on families. And while I am at it, good avis about constraints, locks, and other Revit mysteries--occasionally boring but critical stuff. suggested title: Why is my window 10' away from it's home? And yes even if I had to "gulp" pay for it.
Before the switch to the auspices of AUGI, I voiced my concern that this forum should not be commercial; an attitude I maintain. Time has proven it not to be. However content, tutorials, avi, and such offered by known contributers, in my view, are welcome.