That comment was about the NoSQL community's hostile reaction to his criticisms of MapReduce, and it does indeed show that they're not interested in knowing abo

That comment was about the NoSQL community's hostile reaction to his criticisms of MapReduce, and it does indeed show that they're not interested in knowing about databases, because they read his criticism in the context of an imaginary (or only-real-because-people-think-it's-real) SQL vs. NoSQL struggle. Instead of seeing it as an analysis of the shortcomings of MapReduce (and being curious about the perspective or needs that might make those shortcomings important,) their simplistic reaction was that he was fighting for the wrong side and needed to be discredited. One of the comments on the blog exemplifies the reaction perfectly: Technically, I agree with much of this article ... <snip> ... But none of that matters. It’s all about hearts and minds, and if the DB industry adopts the attitude in this article, it’s back to what I said at HPTS back in 2001: We Lose. Screw content, screw technical judgment, it's about attitude and "winning" the struggle "against" existing database technologies.