It must depend on what you’re using to read it. It’s also readable for me on an OLED iPad, and gives me ideas about what I actually want when I wish I could turn the contrast down while reading it with low ambient light.

Bringing the brightness levels of the background and text closer together doesn’t ever seem to work, but being able to add a slight blurry dropshadow behind behind each character might be a way to reduce the artifacts OLEDs seem to create when my eyes are tired.