I used to think I am like this, until I noticed, in bright daylight readability is way way better in light mode. So nowdays I switch depending on the light settings (and curse all the apps who do not follow the OS settings, where I have to do it manually).

In my experience that's because most users run their monitors on 100% brightness instead of turning that down. I prefer light mode unless it's really dark.

I suspect a lot of the comfort preferences come from there.

The average monitor has a brightness level equivalent to screaming in a study room, and a color calibration that assumes fluorescent office lighting.

For me it’s light themes all the way. I rather turn the brightness down than switch to dark mode.

It has to be really bright before I will switch my ebook app or feed reader to black on white instead of white on black.

At a certain point, white text on black just isn’t readable but the inverse is somehow.

I prefer dark mode for image-heavy content and coding, and light mode for long amounts of natural language text, regardless of time of day.

Conversely, I prefer light mode regardless of sunlight.