Right, but you could still run into issues where the proxy claims to have not received it, despite delivery confirmation.
I'm not saying my approach is the right one, but if I'm the seller it either ships directly to the buyer in the main 48 or the buyer assumes 100% of risk when it leaves my hand. That or we just don't make a deal, hopefully parting friends.
In situations like these there's not right or wrong i believe, as anyone perceives a situation differently. It is understandable and discussions like this serve to bring forward ideas, issues, fears etc. that others maybe haven't thought of yet.
As i understand it, the only way that the seller has to bear extra responsibility is if he takes the responsibility of the shipping all the way to the final buyer. Usually that's not the case since the buyer does and i believe should, take responsibility until the delivery to proxy is done (always assuming that the condition is as described in the post).
Now, the proxy denying that he received the item, is a chance you equally take on a domestic deal.
If you are honest and responsible anyway, then you will remain so
despite if you are the seller, the end user or a proxy and
despite the country you live in(Here is where feedback and overall forum activity comes into play as well)
Note, i am not telling you 'do it' (proxy deals i mean) i just can't see the connection of a proxy deal being more complex than a domestic one (
assuming that both parties are clear to their expectations and responsibilities) and i try to understand it. The only thing that i can see being a problem, is in the case of a package that goes missing or the goods get damaged in transit from the proxy to the end user, and DESPITE the fact that all the involved parties know that this was a risk that they willingly took, the seller just feels bad/awkward because of that. He will have the money but the buyer will have nothing to show for what he paid, and that's not an ideal situation for a lot of people.