I love the beginning sequence... where he tells the viewer to never work receptacles hot -- because you could die -- and then proceeds to do just that.
I have noted that there is a propensity for those who know little to YouTube much.
As for my personal style, if I touch a receptacle that is as old as the kitchen device -- I replace it every time. (Modest price adder) I don't want to have to come back on a warranty call because I shook something loose in a marginal device. Likewise, I always expose fresh copper, or shine up old copper.
I must give him good marks for good grounding.
Worse tradecraft is out there. Always.
