I disagree when you imply we shouldn't expect thoughtful discussion. This is the only place on the web where I contribute at all and I do so just for the thoughtfulness. Ive always held HN up as a place where people smarter than me hang out and talk and where I could, and really have, learned a lot. Just because the topics don't stick around very long that doesn't mean thoughtful discussion can't be had. It's all over the place around here! I do feel there's been a decline in not just comments but submissions in general but so far it hasn't gotten to the point where it's even close to any other forum or whatever you want to call it.

And you didn't waste your time. I read what you wrote. I enjoyed it. It sparked a discussion, see? But I am going to bed now so I guess that's over... But had this been any other time of day we may have gone back and forth a bit and others might have joined in too. Hours are more than enough to be thoughtful.