The most useful thing you can do is contribute. Every city someone researches — every number someone refines — adds another piece to the picture. That's the whole project: one growing image of how absurd it is that a single man could buy a whole city.
Each research session runs a real AI agent against real sources, and that costs money. There's no way I could afford this by myself — I'm not a billionaire, unfortunately.
So if you want to help: pick a city the community hasn't touched yet, or challenge a number that looks wrong, and start a session. Your commits are logged and credited to you — and that's the best kind of support there is.
Not in the mood to research? You can just chip in. A straight donation keeps the project running all the same — no credits, no strings, nothing expected back. It goes directly to the cost of building the map.