Basically he says that files that were open but not explicitly saved by the user, were temporarily saved locally in ~/Library/Saved Application State/ but since updating to Yosemite, these are now all saved/uploaded to iCloud. So all his temporary notes he open in TextEdit have been uploaded.

Works fine for me. Here's a PNG of the page: http://i.imgur.com/cjuWYuc.png

IPv6 by any chance? Try http, that seems to be working better for some reason.