My biggest wish is that there’s an easy way to contribute images to wikimedia and to link them easily with osm. As soon as that’s possible, we’ll map the world much quicker and more reliable. Someone might take pictures of benches and another one will add the info if there’s a backrest from home.
As a developer that has used OSM, I want to fix the place classification for nodes in my country. At some point I realized that many region capitals were classified as towns when OSM policy states that they should be cities. It’s been on my backlog for the past few months, and I want to dive deeper, understand the classification policy and create a script to fix mistakes.