Good to know you're adding more of a reason to happily abandon TruckersMP on the launch of any other mod.
Making the save editing rules regarding duplicates unfortunately limited.
I understand banning lots of horns. I understand banning excessive amounts of lights and beacons.
But limiting it to one duplicate per vehicle, simply doesn't make sense.
The ironic part is, you're just going to have an increase in the amount of reports from this. Reasonable save edits which wouldn't cause any issues, are now going to be a bannable offense.