Bob and company have a lot on their plate, so let's give them time to get the foundations sorted before we bug them for things like different color themes for the forum.
In the meantime, anyone who wants to view this site in dark mode can get a simple browser extension to easily simulate that. Personally I didn't even realize the site was a bright white because I have Noir (for Safari) turned on all the time. This is what I see:
If you're on an Apple device and use Safari, you can find Noir here:
apps.apple.com/us/app/noir-dark-mode-for-safari/id1592917505
If you use Chrome or Edge on any platform, you can try something like the Dark Mode extension:
chrome.google.com/webstore/detail/dark-mode/dmghijelimhndkbmpgbldicpogfkceaj