If you can't tell that TL;DR from the title + subtitle, you really need to work on your analytical skills, which means avoiding TL;DRs like the plague. How much spoon-feeding do you need!?
For me, I often can't articles (and subtitles) because my company Web proxy filters the actual article. I can see the discussion in HN. This title is of the highly annoying "why this and that, click me" variety which is generally a turn-off.
Therefore I really appreciate the above TL;DR because it gives me the hint that the actual article is interesting and I should read it when I get to another computer that does not have this filtering proxy.
