Broadly the people who contribute, contribute because they want the data to be useful. The people who don't care about the data being useful aren't contributing

Broadly the people who contribute, contribute because they want the data to be useful. The people who don't care about the data being useful aren't contributing. Which leads to things like: https://wiki.openstreetmap.org/wiki/Quality_assurance https://wiki.openstreetmap.org/wiki/Quality_assurance