Try reading this article replacing Medium with posterous/tumblr/subvtle/Google +/Wordpress... The content publishing is a commodity, nothing revolutionary or wrong with it.
[1] (from Wikipedia) "In the context of the World Wide Web, a content farm (or content mill) is a company that employs large numbers of often freelance writers to generate large amounts of textual content which is specifically designed to satisfy algorithms for maximal retrieval by automated search engines. Their main goal is to generate advertising revenue through attracting reader page views[1] as first exposed in the context of social spam.[2]"