Haha its just wrong to say LC numbers dont track a package. Not just technical (of course technical too like explained above with the miami example) but in fact its wrong. Within the usa they are used since years and im sure you know dat. Its not the strongest form of tracking but still a form of tracking. Or is a fiat no car just because there are ferraris aswell?
Keep it simple LC numbers are trackingnumbers, period. They named like dat by the ones who make em, the ones who use em, just every person besides you.
Go to the usps website:
https://www.usps.com/
there is a button says "track & confirm". Click this button a field opens. Type a LC number into dat field and you will get a result wether the package got accepted, crossed a certain point like sort facility etc always with the city name of the certain location next to it. There is another field top right if you go on the usps.com page says "search usps.com or track packages". If you type a LC number into this field the same happens.
So usps names LC numbers trackingnumbers else you wouldnt get a result when typing em into one of the fields on their webpage to track a package. Also technically if you type it into those fields your package gets tracked to a certain point. Please stop continuing with your mistake, its no loss to admit it and its important the people dont get confused.
The question we are discussing here is (and you already said dat) if its a trackingnumber dat keeps the sender out of trouble.
You say paypal, credit card companies etc disagree with my feeling they just want proof something got shipped so a LC trackingnumber keeps the sender save? But you never gave proof for this statement anywhere you just stating it. Me myself made the experience dat paypal sided with a seller who only had a LC trackingnumber and no proof a package really arrived but proof he shipped it.
Did you have any experiences with the new LC numbers usps uses since a few months for overseas shipping? Since you always use the 11.75$ additional costs for extra tracking method i doubt it. Also the case you named and said you just lost i explained on the first page i think it wasnt with a LC number but with the extra tracking you use where they can see the package got shipped back to you so of course the buyer got his money back.
In the end we can break the whole discussion down to this point:
I do know that Pay Pal requires proof of delivery via online tracking
now you just said it like it was nothing. But dats what its all about so i ask how do you know dat? My experience from few months ago showed me the opposite.
I need concrete experiences with the LC numbers from the last few months. Not no experience with another trackingnumber. Just be serious what do we know about the LC numbers in action? And i wonder how you got to type em into an ebay shipping formular when you always charge 13$ on top of the normal shipping costs to use your 11.75$ extra tracking?
Im being investigative because this is an important topic and i really want to find out whats up. I wrote to paypal now but it can last up to 72 hours until i get a reply.