Hello, I'm new to editing here. As a matter of fact, last night was my first time to try it and I'm still learning. I began editing because I have been using a mapping app that uses OpenStreetMap, and noticed that my city, Tokyo, is only about 25% mapped, and there are almost no nodes.
After a few hours working on my home neighborhood, I realized that I can't do much by myself, as there is so much research to do to get it really right, and well, Tokyo is huge. I will continue whenever I have time, but I hope others in this city are working on it too.