Some things never change. I surf the web since 1995 and I've seen the designers and "designers" not caring about the readability since then, now it's really 20 years. As soon as it was possible to put the background images on the pages, almost every random page became unreadable unless you've turned off the images altogether.
Then the designers recognized they can reduce the size of the text to the unreadable sizes. They did that too, because it's about the design, they don't care about the text anyway, and the ants droppings look better on the page than these letters.
More recently, some claim that they read better gray text on the lighter gray background. I always used IPS screens and it was never readable. I guess these guys turn their brightness and contrast controls to 110% then wonder that the black text is not readable. Repeat after me: the readers don't set the screen like you.
And all these pages with long of nothing because their Njdxjdfj font is the only one which can present their glorious design. Yes it's annoying.
I'm extremely happy there's a reader mode in iOS and in Firefox. But guess what? The most annoying pages are almost by rule also not available in the reader mode. I wonder how they manage to achieve that. Do they tweak the page until the readers can't show it? Or is that just grandiose ignorance?
And remember these glorious Flash-only pages?
One thing I'm sure: whenever the technology gives some chance for some to produce unreadable pages, they will produce unreadable pages. The last 20 years were consistent with that.
My favorite old page, fully readable:
https://www.bell-labs.com/usr/dmr/www/chist.html
Compare with the current home page of Bell Labs:
https://www.bell-labs.com
Is the goal of the modern design, when used as in this example, to convey information or to confuse?
The designer is certainly not the only responsible. The title of the page is: "Redefining Our Relationship with Information." Yes indeed.