When flagging an activity, the choices are currently Activity Was In A Vehicle, Wrong Activity Type, or Bad GPS Data. There should also be a choice for Duplicate Activity. I see lots of people recording the same activity on multiple devices and posting all of them as if they were different. In some cases the start and finish times are basically the same, and in other cases they are staggered but still overlapping as if the person is deliberately trying to game the system to rack up more miles than they have actually ridden.
