Stuff like that is quite normal and I don't blame them, but this guy was obviously on his high horse, talking sh!t without knowing sh!t. It's that benighted yet arrogant mindset that really pissed me off.
Uh yeah, got what u mean.
Thes kind of behavior happens many times with people who try showing expertise in certain sectors in which they're not competent at all.
My parents have teached me a life lesson which is: "if you don't know something, don't speak about it as if you do".