Or maybe... I don't know. As I write this out, I can see how some people would consider they're being helpful, and I probably use this technique at times. But this morning, I saw someone asking a question in the UAV Legal News and Discussion group: "I have done x, y and z as I believe the law requires. What next?" and someone saying "What law?"
Dude. You know what law. You've been in this group for years. The law in question is the June 2014 Interpretation of the SPecial Rule for Model Aircraft, originally included in the FMRA of 2012. You describe it as "recommendation", which is not actually true, and you know better.
Yes, it's being challenged in court. Yes, it's questionable that the FAA passed it at all, as it is a promulgation of rules as prohibited by Congress, but don't just play pretend: describe why *you* think that it's not law, or explain what you would do in answer to the person's question. Don't just sit there and pretend you don't know *exactly* what he's talking about, because you do. I know you do, you know you do, and this poor fool who came to this group to ask a question just wants some freakin' help.
So I guess it's not about being obtuse, in this case, it's just about being a bit of a dick. So, rule #1: don't be a dick.