> Just adding a few tags improved the experience dramatically.
This works for routing, but doesn’t apply to businesses: for the bare minimum you have to add one or two tags (type + name), to make that more useful you have to add the opening hours and ideally the website. Now multiply this by 60,000 (the number of businesses in Paris, France). By the time you’ve finished your neighborhood some businesses you checked last month are already closed and some new ones already opened. Go on holidays? Too bad, you have to start over again when you come back. Trust me, I’m contributing almost every day and I can’t keep the pace.
Don't do all the businesses in Paris, just do the ones you frequent the most. Google doesn't have all the businesses in Paris either (or at least, in Atlanta I run into ones that they don't have too or that they have but it's completely wrong, at an old location, etc. fairly frequently).
Yeah the idea that I should keep up with all the shops in the larger area is scary. Luckily, I'm not alone. All I can say is you're doing a good thing by adding regular updates.
And I think even partially complete OSM is helpful. If I add just one ATM, that can already help somebody looking for one. That might even be me, when I know it's there somewhere, but not exactly where.
This works for routing, but doesn’t apply to businesses: for the bare minimum you have to add one or two tags (type + name), to make that more useful you have to add the opening hours and ideally the website. Now multiply this by 60,000 (the number of businesses in Paris, France). By the time you’ve finished your neighborhood some businesses you checked last month are already closed and some new ones already opened. Go on holidays? Too bad, you have to start over again when you come back. Trust me, I’m contributing almost every day and I can’t keep the pace.