https://fmhy.net/

Ask on their github https://github.com/fmhy/FMHY/issues. I don’t see it listed anywhere, but it should be listed.

we can get random experts chiming in about interesting topics in an organic way

1. In my experience, many of the people claiming to be experts on reddit are spreading misinformation. This goes for Twitter too, and probably most other large social media sites. People love to be seen as an authority on a topic.
2. Reddit is anything but organic, and is getting worse and worse in this regard.