The amount of data on OSM sometimes boggles the mind, there was 23471 new changesets just yesterday. With so much great mapping work being done by the community, there’s always a possibility of a few bad apples. So, here’s a collection of a few that I have stumbled across last week (13 - 17 June).

• This changeset in which a number of highway=footway & footway=crossing & crossing=zebra tags were deleted and nodes on highways with highway=crossing tags were added in downtown Atlanta. It is to be remembered that both these methods are suggested in the OSM wiki for mapping crosswalks.

• This changeset deleted roads in Ethiopia using iD editor. Also 5 harmful changesets from 2 other users from whom one was deleting buildings and the other was editing features without any reference imagery or mentioned source.

• This changeset gave non-latin names in name tag in London and this was reverted.

• In this changeset, nodes had attributes meant for the ways.

• This changeset fixes a user changing trunk road to primary road tag.
• These 3 changesets 1, 2,3 were reverted because they looked like this.

Stumbled on anything suspicous on the map this week? Do drop the mapper a message, for all you know, it was just an honest mistake :) Look forward to another roundup next week.