Compartmentalization really needs to be a mindset as well. As noted in the article, certain user behaviors can also create linkages between otherwise disparate

Compartmentalization really needs to be a mindset as well. As noted in the article, certain user behaviors can also create linkages between otherwise disparate online personas, e.g. visiting a common subset of sites or visiting sites with low traffic and highly identifiable demographics. It would be difficult for Qubes OS to know that I shouldn't visit zikes.me while browsing in my "anonymous" persona, for example.