Dark mode is for people who prefer dark mode. Yes, the science seems to indicate that light mode is generally more readable, personal preference be damned.

I'm generally a light mode person, despite growing up on "dark mode" (AKA 8 and 16-bit home computers and DEC VT terminals). But, for whatever reason I have to code in a window that is set to dark mode.

I know that there are probably extensions etc but I'm in my bedroom now and the room is not lit like an office and the site is really bright :)

For us "geeks", although I appreciate the minimalism, I'm sure that we enjoy dark theme everywhere.

I'm visually impaired: dark mode is about making the web usable for me

https://drgrizz.xyz/dark-mode.html

There can be other valid perspectives than your own.