There's an inverse phenomenon in which the question asker has legitimately found the appropriate solution to their problem, but people are combative and unwilling to help because they insist on knowing the full context, erroneously believing the situation to be an instance of the XY problem. This sometimes leads to a huge digression because explaining the full context is not always as simple as "I want the file extension". I've seen this fairly often on Stack Overflow, where someone is unable to get an answer to their question and instead only gets interrogated. In the worst case, this creates a prominent link in Google results to the question with no answer.