I get quite frustrated with the amount of user-blaming in this industry. Yes, it can be annoying when non-techies ask questions when the interface already makes things very clearly, but I think it's always good to look for the reason why people keep asking those things. What's confusing them? Are we making assumptions about our users' knowledge and experience that aren't true? This goes for products, but also for communication within a company. While it's never acceptable to be rude, not even (or especially not) as a manager, there's probably a reason why they get so angry. Look at the differences between your and their assumptions (it's like UX in real life :)).
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.