Hey, I heard briefly about map battle, but still don't quite know what it is. Either way, could you please try to add a descriptive changeset comment in addition to the hashtag? That way its easier for other mappers to see why you're making changes (just a bunch of "#mapbattle" changesets in a row looks a bit suspicious for reviewers, if you know what I mean). Remember: quality over quantity!

Is there some webpage for #mapbattle? Sounds interesting!