Jonny's videos are fun, interesting and easy to digest and no doubt work for a lot of people. I enjoy them. And actually what he is doing is very much traditional auctioneering advertising. But if he is going to insert a 90 second clip into a video with the history of a maker, then he has the time and resources to get it correct.
I don't disagree with any of that, and perhaps I was being overly critical of the criticism. I was probably reacting to the title of the thread (and the content of some of the posts), which do seem petty and unnecessarily insulting. There is a large gap between seasoned expert and ignorant dimbass who does not 'know anything'. But yes he should have made sure he had his facts straight especially before making a fancy chart.
I may be naive, but I watched the video as an opportunity to see the inside of Holts from a few thousand miles away and didn't really see it primarily as a sales pitch. On the other hand, I did immediately and compulsively bid on every gun they looked at...