This would take dozens of hours though. If there were absolutely no option I would consider it but it is also absolutely useless for discovery: I have to already know it's there and add it myself. Every time someone sends me their address, I have to add it to OSM before I can navigate to it. That is a non-starter for regular, reliable use. If I just had to add something every once in a while that would be one thing, but it's entirely unusable.