It is generally hard to read, even with only mild astigmatism and perfect glasses. What is even worth is that the Website does not appear to support Firefox's readability mode.

That seems to be the curse of our time: Function follows form.

I use Firefox's readability mode for quite a lot to help me process these "pretty" web pages. Most of the time it works pretty well and I can read the content even faster. Even if it doesn't work perfectly, it still provides a better contrast than the original. In the case of these new Ruby docs, it falls apart more completely than I've ever seen. It's completely unusable!

As a terrible Ruby programmer with pretty good 55 year old eyes I can't read these docs at all. Everyone is complaining about the color scheme (which I agree with) but its the font choices (lightweight, grey on grey) that kills usability for me.

When I'm looking at docs I need to find what I need quickly, and searching a sea of whitespace and barely there text is not great.