In the process some forum threads would pick up hundreds of posts over a decade or more so that removal of every nut, bolt, screw, plastic plug, etc is documented with photos, allowing anyone with the vehicle to see exactly how to take ownership of the vehicle from the manufacturer.
True old-school old manning involves not only removal of all the bullshit, but also covers all cosmetic changes to the vehicle that would be needed to eliminate all signs that any of the offending components were ever installed and would include things like how to accomplish all the trim and body work necessary to permanently fill all the holes in the vehicle like antenna penetrations through the vehicle body and plastic trim mods to fill holes that formerly held buttons or switches that no longer exist.
In the process, old-school old manning would attack the software used in the vehicle, removing all the offending functionality with a custom flash tool so that the only software running on the vehicle after all the mods are completed would be that which controls and monitors engine and transmission functionality since that is actually the only software on a vehicle that adds value by allowing the vehicle owner to track operating efficiency in real time.