The only pattern in this forum is that most of us are blunt. And that certain questions and behaviors tend to pop up from time to time, that remind of when someone has brought up the same assumption or reacted the same way in the past.
From time to time we see things like that repeat.
As far as people who can't do techniques X are the ones who reject it. I would definitely say that's not the case here. There is often a lot of discussion of things that most of us can't do, and it's not rejected. Kung Fu Wang is good for tossing things like that into the discussion and at the most people may not first understand, but then he'll post additional information that allows us to better understand what we are looking at. I don't see people just rejecting him all the time.
There are a few of us who want proof by video fighting a professional MMA fighters, but that's far and few in between. The other pattern that I've seen is that people are quick to jump on nonsense posts. Anything they think is nonsense they will respond to in a blunt manner, so I don't the responses that you are getting are due to someone not being able to do it., I think it's not as easy to get away with generalities on this site.