My understanding is that the post isn't the x-risk- a UFAI could think this up itself. The reaction to the post is supposedly an x-risk- if we let on we can be manipulated that way, then a UFAI can do extra harm.

(Concerns not necessarily limited to either existential or UFAI, but we cannot discuss that here.)

But if you want to show that you won't be manipulated a certain way, it seems that the right way to do that is to tear that approach apart and demonstrate its silliness, not seek to erase it from the internet. I can't come up with a metric by which EY's approach is reasonable.

Agree. :)

The reaction to the post is supposedly an x-risk

Yes, but not in the way you seem to be saying. I was semi-joking here, in that the post could spook people enough to increase x-risks (which wfg seems to be trying to do, albeit as blackmail rather than for its own sake). I was referring to how in the film Dogma gjb snyyra natryf, gb nibvq uryy, nggrzcg gb qrfgebl nyy ernyvgl. (rot13'd for spoilers, and in case it's too suggestive of the Basilisk)

if we let on we can be manipulated that way, then a UFAI can do extra harm.

It can? I suppose I just don't get decision theory. The non-basilisk part of that post left me pretty much baffled.