I’m currently working on just this. The concept allows you to search a combination of Wikipedia terms to find people at that intersection. Eg. Blockchain/JavaScript, Fermentation/Kombucha, Aquaponics/Blueberries, Electric Bicycle/Solar, etc.

Currently it’s set up much like HN, with ability to submit things at an intersection for others to find.

I’m also considering creating a game world map based off the entirety of Wikipedia. Then once you find a niche intersection you can drop into the world at the corresponding coordinates and chat with people nearby (searching the same or similar niches).

At the moment