So the dogmatic person would be the one who says: "I happen to like Linda Pastan, but I refuse to say why or have my preferences questioned. It's just my personal taste." Like Fish's notorious "interpretive communities." Every individual ends up being a community of one. There can be no dialogue because once there is disagreement the community splits into two.

The fallacy of taste as a matter of individual preferences. Surely taste is social rather than individual! But I'm sure I've already said that on this blog.