One of the great things about using a wiki is you can make corrections. Unfortunately, I feel like I'm seeing more corrections for corrections sake. For example, Portland has two stadiums, the Memorial Coliseum and its replacement the Rose Garden Arena. Someone decided the latter needed a building=yes tag and now it looks like any other building:
Plus we can't seem to agree whether walkways in a park are tagged as
These ways keep getting tagged and tagged again. Meanwhile, we have neighborhoods without street names
and retail areas with no POI
Maybe this has to do with the fast-and-loose approach to tagging. I mean, there is a valid a case that a sidewalk is a path, paved/unpaved, a footway and a cycleway. The problem as I see it is these changes don't make the map better, just different. Perhaps when tagging stabilizes we can make a bulk edit.
It seems like there are enough TIGER fixes, new roads, trails without traces, missing bridges, POI and other details that changing tags of existing features is perhaps not the best use of time.
What I'm really trying to say is that instead of changing the tags on something that's already mapped, add new data instead.