Plain text as a storage medium, not as a design element.

Most design is unnecessary when it comes to plaintext.

Personally I disable most fonts and limit the sizes to improve my browsing experience

Ageed! It was too painful to read on my phone. Dark red on black is a questionable design choice. I appreciate the desire to standout, but usability should trump style.

Your browser should have a 'no style' option tucked away somewhere. Presentation is - according to the original web spec, not the present monstrosity - mostly the job of the client.

Isn't "reader mode" available on some browsers almost a "no style" option? I use it exactly for that reason. I admit not every page is reader-mode-enabled but I just don't bother with those.

In Firefox, you can select View > Page Style > None.

Of course there is also the reader mode.

I think it looks beautiful.

And what's more, what an absolute joy to find something published on the web where the text has both good contrast, weight and width.

I'm totally fed up having to use the browser's developer tools or firefox reader mode because the text has font-weight 200/300, slightly darker grey on light grey text and uses less than 30% of my screen width.

It's so sad that this is such a rare treat on the web these days.