First, only your post is a waste of time. (Zing!) But seriously, that all depends on what your goals are when you come here, how you use the site, and
whether or not the site meets your goals.
Second, some meta-advice about the "Trollish question? Although question might be trollish, it isn't because..." meme: Don't do it. If you have a question like that, then it really is trollish. If you think it isn't trollish, then you need to think about it some more, because you're missing something obvious. When you figure it out on your own, you're going to be so glad you didn't embarrass yourself by asking the smart people on HN such a--let's be frank about it--dumb question.
I normally don't respond to posts of this kind, but it has become a line-in-the-sand issue for me because this meme, and so many others like it, seem recently to be running rampant through an otherwise useful site. We get replies of the form, "I'm obviously unqualified to talk about X, but here's my opinion on X," the afore-mentioned "Trollish Q? Not so because I think it's interesting," and so on.
Think of it as being like farting loudly in an elevator. It doesn't matter if you have really bad gas, you wait until you're alone. Similarly, if you've got a vacuous question or opinion so unjustified that you have to qualify it by saying so, just don't air it in a public forum. You're wasting people's time.