> My sense is that the map data that can be acquired programmatically is very good on Google, and anything requiring human input or verification is relatively w

> My sense is that the map data that can be acquired programmatically is very good on Google, and anything requiring human input or verification is relatively weak, especially outside the USA. Their Local Guides program in Maps is clearly a direct reaction to this, they even explicitly ask you to sign up with a message saying "we need help from a human". Once you're signed up you'll occasionally be asked a series of yes or no style questions about places you've visited, ranging from "Does this place have disabled access" to "Would you consider this a classy place". They also encourage you to do things like adding the opening hours of places they don't know about, or confirming that places are still in business.