I completely appreciate what you're saying here, and I think you're absolutely correct... However framing your insight with "Again you fail" makes me respect your opinion less. As someone who had a similar idea to the person you replied to, and as someone who comes to HN to have "smarter people in the room", it's this kind of condescension that keeps me from commenting on HN.

Sorry for the mini-rant, your three word comment doesn't really warrant it but hopefully you can respect why I took the time to type it.