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.

Then, with all due respect, you should not be anywhere near the design or evaluation of accessible systems.

There's people reading this blog with all types of devices, screens, lighting and range of visual acuity. Even if you're blessed with perfect vision and excellent displays, it should be obvious that readability has been lowered for no obvious reason.

The point of a blog is for people to read it, so it fails at its foremost job.