It would be nice if content reflowed to fit my borders, with a bit of whitespace.
Here's a screenshot. https://imgur.com/a/I0hnF
The more readable wikipedia requires horizontal scrolling. (But also note YouTube includes too much whitespace, making the video small. This is a recent, annoying, change that I haven't created a tampermonkey rule for yet.)
* -60: Serif font on screen
* -40: Sharp, plain, distracting boxes instead of whitespace
* -80: Huge margins on a desktop site
Yes, that's under -9000!
Serif fonts work very nicely with sufficiently high DPI, or if they are designed to withstand low DPI like e.g. Georgia. Is there any way for a website to know if it's running on a high-DPI screen?