Please, don't use aggressive language here, no-one is attacking you.

There is no such thing as markdown Reader. Markdown can be read by cat command.

For the first thing, there is but I put it explicitly in Woefucks section.

For the second, you can also use a cat to read a README written in groff and the result could be similar to reading a markdown based one, which is having difficulties to differenciate some sections which could be debatable because it is true that markdown is simpler and most HTML tags for extension purposes are known by some people.

It doesn’t. See the link i posted in previous reply. Also windows.

Discarding Woefucks here as it was covered before, yeah, they come. Most server OSes are custom images by IaaS providers with them.

Main OSes in servers also come with it as result of main software used, and other times as secondary software in dependencies.

Best example are Red Hat and Debian families. Suse one can also come with it. I work on this.

Where you could not see it? in a Docker container using default Docker images for several OSes including Debian family. But you don't usually check man there but in the outside OS in which you edit the source code containing that README in order to prepare your custom Docker container or image with it.