I am pleased you asked :)
The subliminal films on YouTube I am struggling with a bit. There are hundreds like this one:
So hard to tell fact from fiction in the comments when it's easy enough to set up fake accounts and give the impression of success to encourage more views.
I feel like there is some truth to it but further research is required to fully understand. Ultimately I would love to create my own frequency tones as I do believe this would be way more powerful than listening to a YouTube video designed to make money.
One week to go till I pick myself a fine looking bunch of stinging nettles ;)