With law and politics I feel there's a similar attitude going around but it's of course more an up for debate topic.
You’ve just discovered another instance of the gellman amnesia effect.
I don't even want to think of the comments I've seen for my main subject (cybersecurity, exploits, and vulnerabilities). I will never be able to correct all of them.
I think some humility would be nice for all of us. We know what we know and we should be aware of what we don't know. I don't know much about web programming, and I freely admit to it. I certainly don't pretend to have anything insightful to say about them.
"Briefly stated, the Gell-Mann Amnesia effect is as follows. You open the newspaper to an article on some subject you know well. In Murray’s case, physics. In mine, show business. You read the article and see the journalist has absolutely no understanding of either the facts or the issues. Often, the article is so wrong it actually presents the story backward—reversing cause and effect. I call these the “wet streets cause rain” stories. Paper’s full of them.
In any case, you read with exasperation or amusement the multiple errors in a story, and then turn the page to national or international affairs, and read as if the rest of the newspaper was somehow more accurate about Palestine than the baloney you just read. You turn the page, and forget what you know.”
And there can be a bit of Dunning-Kruger if you work in a related field too.