“Knowledge is power” is an expression at least hundreds of years old. Whether these data collectors were specifically thinking of adverts or not, they realised that this information had value, and so they collected it. I don’t think we can know the true motivations of the data collectors and brokers, but we can know that there is (and always has been) a market for data.

The quality of the search depends on which app you use and how it prioritizes search results, right? I know this is a bit of a tired argument, bit since CoMaps is open-source, you could submit a patch, or at least a bug report.

I’ve encountered the same behaviour on Google Maps on occasion, too.