I realize that people wish to look at porn (also, or especially, in repressed societies) without leaving too many traces, although I'm not sure if tiny screens with expensive mobile plans are ideal for that purpose.

However there are many, many genuine reasons why people might not want to leave their browsing history behind so the pedantic shouts are a little over the top, IMO.

There are countries small and very large where simply being in possession of politically incorrect browsing history puts people in grave danger.

Secondly, a Linux computer without proper multi-user (and more recently Guest) feature?