I was watching a tutorial on chasing and repousee a few minutes ago, and the demonstrator’s patter was intolerable.
It got me thinking about what a tutorial or demo needs in order to be really useful. Clear descriptions without side comments about “x isn’t right”. Sharp video quality and good production standards. Less extraneous conversation, and more thoughtful commentary about technique.
I suppose, in the end, it all boils down to being a good public speaker.