When we made modifications, add the ability to remove the edit, for exemple, an editor that does'nt came for a while doesn't know about new editing rules and made errors, if another find it, he could cancel the change, if there is more than 10% of the last 100 edit are refusée, then the user should need to pass 10 new validation before auto submitting...
That just need to be able on the 100 last updates or 30 last days