OpenStreetMap
A new user deleted over a 100 features including the place node in the centre of Montauban, a large town in France.
Just reverted both these changesets:
Caught and reverted in 15 hours! A few tools where one can review changesets from new users apart from the history tab:
Дийцар
Коммент colargol 30 March 2017 19:42
Great work ! How did you spot this changeset ? Was it by chance or do you at Mapbox check every changeset for suspicious edits ? Thanks for the QA links.
Коммент PlaneMad 31 March 2017 04:55
The team at Mapbox checks a random sample of possible suspicous changesets everyday using osmcha. We’re seeing what tools the community needs to better look after the local map.