I know a few guys and even a dating coach who did that when it came around. The common thing that they said was that they didn’t like how they felt doing it. They also noticed that at the end of the techniques, there was just you, and you would get found out.

Now the common trend is for authenticity and openness/vulnerability. In addition to approaching and that sort of stuff, it’s less about learning a technique and more about the other positive things.