This is a dreadful change, at least for me. Server was the only blog I read, and I'm not sure how to navigate to exclusively ArcGIS Server topics on this new blog, as there is no category for it. Clicking ArcGIS Server from the Tag Cloud does not seem to bring back all the old ArcGIS Server Blog posts, and additionally, viewing the posts by title only makes it impossible to quickly skim each article and see if it's worth a full read.
In short, accessing the information that is relevant to me is now harder, if not impossible, and the user interface makes extracting the information out of useful posts harder.
Just my feedback; perhaps others love the changes.