Perhaps you don't value verbosity, but fans of Flaubert, Balzac, Henry James, Joyce, Poe, Dostoyevsky and Dickens would disagree with you. Your absolute statement is false when looking at most of the valued literature over the last few hundred years.
The more verbose code is, the more prone to error and less maintainable it is.
I think this is true, but only to a certain point. Past that point the code becomes more difficult to understand and less difficult to maintain (for example all variables with one-letter names, few new lines). So there's a continuum there between terse impenetrable languages, and verbose impenetrable languages on either extreme, and you disagree with the OP about where on that continuum Go falls. It's all a matter of opinion and frankly is more subjective than objective and depends on things like the standard library and culture of the language far more than the syntax.
There are also many other factors in being maintainable and error prone - verbosity is only one of them. So saying that Go is more verbose than language X doesn't really tell us much about how prone to error or maintainable Go is compared to language X on its own. For what it's worth, I find it comparable to languages like C, Ruby or Python in terms of verbosity, which feels about the right place to stop being terse to me. YMMV.
I don't value verbosity and I do appreciate the works of those authors: I do not consider them verbose. Verbosity is not a measure of the absolute length of a document; it's relative to a minimum expression of an idea. Per this definition, all verbosity is unnecessary because it conveys no additional information.
What a curious statement. James did not consider the 'minimum expression of an idea' a virtue, he's almost infamous for his verbosity, as are many of the others in that list. I'll leave you with something from the start of The Ambassadors as an example:
The principle I have just mentioned as operating had been, with the most newly disembarked of the two men, wholly instinctive--the fruit of a sharp sense that, delightful as it would be to find himself looking, after so much separation, into his comrade's face, his business would be a trifle bungled should he simply arrange for this countenance to present itself to the nearing steamer as the first "note," of Europe.
http://classiclit.about.com/library/bl-etexts/hjames/bl-hjam...
1. Step One Goes Here
2. Step Two Goes Here
3. Step Three Goes Here
Step One Goes Here|Step Two Goes Here|Step Three Goes Here
1. Step One Goes Here
2. Step Two Goes Here
3. Step Three Goes Here
Steps (One, Two, Three)