In my experience, the ones who most fervently believe they have such “clues” are often the same ones who lack them. I can’t tell you the number of times I’ve encountered engineers who become indignant when someone tries to redirect them to safe, scalable, and operable ways to solve problems. What they often want is to have the problem solved their way because it would be less work for them or otherwise advance their own personal interests, regardless of the problems that doing so would create or the risks it would pose. They don’t want a discussion; they want a rubber stamp.
I mean, yeah, if you’re selling someone a product it’s pretty fair for them to expect, or at least hope, that it will reduce their workload and advance their personal interests…
> because it would be less work for them or otherwise advance their own personal interests
I've seen plenty of people rationalize not wanting to learn a new thing with those words.
The thing is, this is a rationalization too. It may be true, it may also be false. The only certain thing is that they don't want to learn a new thing.
That said, this happens in small circles, where you know the context of the person asking the question. People assuming they know why a stranger is asking something tend to be wrong too.