That’s easy to agree with and confirmation bias aside....the same mechanism (screen) he uses to drum up business (identify which boards to post to) is about 75% of the way to an efficient “what should I short next” list for noobs many times.
Overall, great production value, but the copy is getting a little stale. Perhaps update to:
“now, real quick—what do I mean by doing the footwork for shorts, in case you’re new to charts”
Remember, it doesn’t have to be intentional on his part to be a real effect. Not quite “Typhoid Mary”... but I suppose it could be seen as a “blind piper” hypothesis.
I suppose we could write a scraper and run the stats on how often he posts to large 1-day gainers and examine their subsequent price action the following day compared to the background ensemble. I imagine it would pass a t-test for significance.