That's going to be true in all fields, people think their experiences are the only valid experiences and everyone else must think and work on what they think is important, otherwise they're wrong.

Right.

It is a very basic flaw in their logical thinking ability.

I never cease to be amazed by the number of HN people who display this flaw via their comments.

Or rather, I have ceased to be amazed, because I have seen it so many times by now here, and got resigned to the fact that it's gonna continue.