For example, almost every group likes to find a reason to think of itself as somehow better and more evolved than the outsiders, which is essentially exactly what you see with the people who frequent these groups. The rationalists think they're better than the NYT, largely because they look down on examining the world as it is, rather than inventing the world from first principles (in my view a key to the IQ debate between Harris & Klein).
There are genuine critiques to be made of the "rationalists" (let's just accept the label as a term for the group of people having discussions in and around Scott's blog). I don't think the NYT is particularly making any. It is quite clear to me however, that the group has a massively over-sensitive to criticism and is entirely unwilling to actually debate the value of their approach with people who aren't already bought in to the appraoch. I don't think it's unreasonable for someone either from the Red tribe or the Blue tribe to say to the Grey tribe - "Sorry, but you can't be indifferent on the topics that you claim to be indifferent on". And the argument that the liberal end of the spectrum uses mob tactics seems rather... bizarre when made by an author who quite literally brags about the mob he stirred up against the NYT.
I think there's a debate to be had about the approach of the "Rationalists" and I think the Rationalists are unwilling to have it - especially with anyone they've decided who isn't part of their Tribe.