Moran quotes Dawkins:
... When a gene mutates into one of its synonyms, you might as well not bother to call it a mutation at all. Indeed, it isn’t a mutation, as far as the consequences on the body are concerned. And for the same reason it isn’t a mutation at all as far as natural selection is concerned. But it is a mutation as far as molecular geneticists are concerned, for they can see it using their methods.
And then writes
Dawkins doubts that any mutation giving rise to a visible phenotype can be neutral ("ultra-Darwinists like me incline against the idea"). Such mutations are only important in molecular evolution.
Maybe this is accurate as to what Dawkins believes, but it sure doesn't follow from the Dawkins quote. Dawkins is talking about silent mutations, so Moran's discussion of Dawkins's view of phenotype-altering mutations is a non sequitur.
Larry Moran is a Canadian biochemist and textbook author who has a blog about evolutionary biology called The Sandwalk. Recently he has been posting essay questions which he intends to use in an upcoming test of his students. Quotes from Richard Dawkins and Daniel Dennett that he wants his students to critique. Also some quotes from Richard Lewontin that he wants his readers to admire.
The interesting thing is that Dennett and Dawkins have both jumped into the discussion, as have a number of my favorite (though lesser known) biology bloggers. Interesting discussion. Worth a look if you are interested in evolutionary biology.