[Filament]

Yes

and Actually option 3 doesn't give the address for where it was sent.
Instead it shows delivered as being from the original address rather than the manipulated one.

Indeed, I believe carriers have different protocol. I tried USPS. I will try UPS, DHL and Fedex for a testrun as well.

I think clarity would come from an insider who works in all facilities or at least someone who knows enough about tracking labels.

I would assume the method works in action due to refunders using that or something
but my suspicion is still among the possibility of an investigation. Like i mentioned before, although it worked, they sent me an email saying there was a weight discrepancy and label change.  (will send as soon as i get home)



Maybe Im just paranoid about mail fraud and getting rebilled

It doesn't give the address it was actually sent to, however when an investigation is carried out (possibly dependent on carrier), the driver has a GPS location that shows where it was actually delivered. As well as if the carrier remembers that the address on the label is different from the stop on their route. If the rep doesn't open an investigation, then option 3 will succeed either way.

USPS showed the actual weight of the package on the tracking page?

@mothered knows a lot about the shipping industry. I personally have been messaging employees of the various couriers on reddit and other forums to learn more.

As with all things - balance is best. Don't be overly paranoid, but don't be lazy and make mistakes. Though I'd say being on the more paranoid side is better.