If you think I'm posting to that thread only old stuff and now I just do @everydoor for two years with no new ideas... I wish!

Just yesterday I got an idea (and documented the plan) for an OSM championship in mapping, based on a series of two-player duels. All from inside JOSM. I know how to build it and eager to start, but ED 5.0 and server migration first. Ten years ago I had much more free time.

This short video sums the idea up.