This is an extremely well written response.
Moreover, simply adding .json at the end of a post or comment url in the browser will convert the post or comment to a json format right on the browser. You may try it on this post. Add .json at the end of the url and see what happens.
This worked on https://hive.blog but and
gives me 404 errors.
RE: Response to Larry Sanger: What Decentralization Requires.