I've fixed a few things in Open Street Map. But, for example, the city line for Redwood City CA at its western edge is totally bogus. That needs to be fixed by automatic reference to some authoritative source, like the USGS database.

i think there was an article a while ago about the OSM community not liking the idea of bots and automation, and how it’s a big problem for people “graffitiing” the maps because it’s manual effort to reset

It's not so much vandalism that is the issue, it's that rampant automatic edits can end up removing meaning from the data (by smoothing out meaningful differences and the like) or if they aren't careful enough, create a giant mess.

With code you need to be able to programme. For OSM you just need to know something about an area. Do you know what the name of that street is? That there's an italian restaurant on that corner? What the house number of that building is? etc etc