There is a very clear reason for that, and it's in the notes of the post. There is very clear disdain for the twitter user, primarily as he seems to be a 'traditionalist fascist'. On Tumblr, especially, they are not particularly fond of the author in any way.
This post was originally screenshots, but was then rewritten with additional points + additional sources. The idea was to separate out the 'the world was better in the past!' and transform it to a critique/discussion of capitalism.
