Upvoted for pointing out the interesting conundrum.
Taking your comment at face value.. XiXiDu is saying he doesn't want feedback through karma at all, but through comments.
I don't agree with it either and so I'm not downvoting his comment. I don't agree because his karma is a signal that, to some extent, means something. A person or people manipulating their karma dilutes this signal even further.
I also would learn more if people explained upvotes and downvotes, or even just reactions to comments that didn't result in voting. It would be interesting if that was a norm for a while -- say two weeks -- to see if that would really be useful or too noisy and tiresome.
Taking your comment at face value.. XiXiDu is saying he doesn't want feedback through karma at all, but through comments.
That is only part of what I have been saying. I want people to be honest and free. Karma causes a strong positive and negative incentive to agree with the currently popular opinion or to stay quiet.
I just watched Transcendent Man about the singularity and Ray Kurzweil in particular. It's well-made, full-length, and includes the most popular criticisms of Kurzweil: that his prediction timeframes are driven by his own hope for immortality, that the timescale of his other predictions are too optimistic, that his predictions about the social outcomes of revolutionary technology are naively optimistic, and so on. Ben Goertzel and others get much face time.
You can rent or buy it on iTunes.