Okay. Hold on. There are a couple of problems with your position.
First, you really seem to be suggesting that @Hanzou is wrong because he disagrees with you.
Second, yes, you are being unreasonable (not sure about 'no understanding').
Third, you are making this very personal, which isn't a great way to get your point across. Not only are you personally attacking a poster, you are also taking this very personally, which isn't a good idea.
Finally, the standard for who is allowed to hold an opinion around here is hard to nail down. I think the details are fluid, but it boils down to agreement. If you agree with the poster, his/her opinion is valid. Otherwise, it is not. I can think of examples where a poster's opinion is dismissed because he never trained in that particular art, and times when it's been just fine. Now, even training in the art isn't enough. You must have "made it work" (whatever that means) in order to be credible. I don't buy it.
I did write a longer reply, but it's just not worth it.