@b0rk related but maybe outside of the scope of your question: I have tried to fire woman (mode from emacs) once. But it wasn't as straightforward as thought and I didn't dig further. As I spent more and more time in emacs, I used woman directly and had less need to implement the "trick".

The reason, because there is one except for using emacs itself is to have the ability to see and navigate the page with a menu and perform search, and filters with tools like Occur that I'm familiar with.