I tried to report things a few times but was stuck at some kind of UI so I gave up. As for evidence, if someone (or several people) uses the maps app to travel

I tried to report things a few times but was stuck at some kind of UI so I gave up. As for evidence, if someone (or several people) uses the maps app to travel to a location, reports that it is closed for good, and travels to a competitor, also using the maps app, that could indicate the report is valid. If other people however navigate to this place and stay before they head back home, that could mean the place is actually not out of business. Google is also good at spam detection, they know everyone who does anything and could flag other actions by a fraudulent user etc. We know that if Google wants to, they can be this smart. But often aren't these days. I think they just don't have both super capable people AND a functional management in ALL of the many fields that they are in. That would probably be impossible.