This seems to be an example of negative commentary being primarily negative, rather than primarily commentary. One specific concrete claim that stood out to me without needing to unpack:
I seem to recall that Yudkowsky first claimed he didn't need to get a degree [...] because the singularity was so near it would be a waste of time.
is, I believe, simply false.
I agree with your overall characterization of the post, but on the specific concrete claim: one of the commenters there cites this article as saying this:
Yudkowsky's reason for shunning formal education is that he believes the danger of unfriendly AI to be so near -- as early as tomorrow -- that there was no time for a traditional adolescence. "If you take the Singularity seriously, you tend to live out your life on a shorter time scale," he said.
which I think is close enough to DC's claim. I have no way of telling how accurately that article...
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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