What you actually mean:

>I have a set of packages I find useful. You may not. Install them anyway and waste 6 months trying to understand how to use things that you don't yet need.

I have a whole set packages and DE improvements I've install/written for literate programming. I don't suggest everyone install noweb and friends for better productivity despite how useful they are.

Literate programming is niche, even more than using Emacs. Using git is mainstream, and magit is considered one of the best git clients ever; some people even install and use Emacs exclusively for running it, not for text editing.