An idea might be to have an "Adopt Your Own Neighbourhood" campaign. I don't know if this is seen as wanted in the OSM community, it might attract a lot of low-effort contributions which might wear out longtime volunteers.
The way I started contributing to OSM is when I was tired of seeing old or no POI data and thought "enough is enough". I first started editing the shopping mall in my neighbourhood, then the schools, and so forth. It is now 5 years later and I can quite keep up locally with POI.
Same, 95% of my edits are POI data in the past two years and I fixed two of the main shipping streets in my neighborhood
But yeah, not sure how scalable even such a campaign would be. I’m the only user I know that use EveryDoor to confirm/update POI in a city of 500k people…
You’d probably need at least 1 out of 1000 people globally to actively contribute. That’s almost 10 million people, quite a bit more than the 1 million Organic Maps users and 250k OSM contributors in 2022 :)
The way I started contributing to OSM is when I was tired of seeing old or no POI data and thought "enough is enough". I first started editing the shopping mall in my neighbourhood, then the schools, and so forth. It is now 5 years later and I can quite keep up locally with POI.