After many years, there still is the occasional packager, who adds an explicit "Requires: %{name} = %{version}-%{release}" to a noarch -doc subpackage which contains files one can display with any suitable program (such as PDF, HTML or TXT files).

I don't know why they do it. The "Requiring Base Package" guidelines leave enough freedom to not do it and even mention -libs subpackages as one example where the base dep is not "needed": https://fedoraproject.org/wiki/Packaging:Guidelines#Requiring_Base_Package

What do other packagers think about this?

Can we please get rid of such bloat in plain Documentation packages? These dependencies pull in lots of stuff even if one only wants to peruse the documentation (e.g. when taking a brief look at an API or what an application can do).