I still maintain that everything is traceable. If the source is busted and their computers are confiscated, you're in their system. You think the feds are going to go after PayAPl people and let the others walk? Don't kid yourself.
Using a fake name makes sense but people who live in apartment buildings sometimes have deliveries held at a post office, in which case you need I.D. Fake name -- you're fucked.
Nothing is fool proof. But honestly, I don't think the feds are out to bust individuals for personal possession of small amounts. Sure, they COULD. But if they're going to do a bust it's going to be for the big boys making big bucks and doing other illegal stuff in the process. Even confiscated shippments are just discarded (or pocketed) and there's no follow up. It's not worth their time. (Unless it's like $5000 worth of shit. That's intent to sell! ). I think the bigger risk/ worry is the source coming through.