In addition to what kmfkewm is saying, I think another advantage of a PO box, whether its a fake name or not, is that you control the aspect of delivery far more so than being a passive receiver at a home address. You can know the neighborhood of your Post Office. What kind of traffic is common, are there businesses in the area? Is it rural, suburban or in a city center? Are there nearby structures that could be used as observation posts by police if they wanted to take it that far and not just use car surveillance and on the flip side, are there nearby structures you could use to take advantage of, like parking garages with multiple entries and exits...You know, every time I go to pick up from my PO box I'll spend 20 to 30 minutes just walking around peripheral streets like I'm some neighborhood schmuk out on his health walk. I'm making mental notes....are there cars parked with people sitting in them. Is anyone else out walking on the street? Have I seen any patrol cars cruising around?
All of these things give you, the receiver, that much more control.
I make the opposite argument. I feel much safer at home. It's my turf, my street. I know every car that parks on the street. If an unrecognized car was parked a block away on the day that I was expecting a package, I wouldn't pull it out of the box right then.
A post office is foreign territory. Anyone can park in the lot, making it harder to look for suspicious cars. LE can be in the back of the building. They are unlikely to be sitting in your living room, waiting for you to come inside with the package.
I feel like I have much more control over the situation at home, although in reality we have little control over either situation. Quite frankly, if LE wants to CD you, there's not much you can do. They've busted millions of people that way and know what they are doing. You aren't going to escape. You will be arrested, whether you physically handle / accept the package or not. Rejecting the package or writing "return to sender" won't protect you. They will have a search warrant already, which they will execute and they will raid your place. Even if they find nothing, they know that some percentage of people will be scared shitless and talk, and there's a good chance you will. Everyone is a hero until the men with badges are standing in their living room. Look how many people have flipped, especially in the hacker community, but it happens often in the drug and activist communities too. There was some hardcore anarchist woman who became an informant when she was raided. That's why I say other people are the biggest attack surface against you. The technology we use is much more reliable. Other people are the least reliable and nobody should know about your business. Nobody knows about mine. There is not one person in my real life that knows I'm associated with this community, or that I got quoted in Forbes, LOL.
We can go back and forth about the advantages and disadvantages of home versus remote shipping locations, and this debate breaks out once every few months it seems (with no resolution), but I think ultimately, your best defense is to order amounts so small that they don't care about you. Because otherwise, there is no fool proof packaging method or shipping location.
If their attention is drawn to your package, there is no shipping method good enough to escape detection. If you can find the drugs, they can find the drugs. They have dogs, x-rays and chemical tests which you don't have. Yesterday there was a thread about how they detected LSD soaked in stickers. They could detect illegal drugs in a mixture that is 99.9% inert carrier, from which you are supposed to re-extract the drugs. Read the old Microgram Bulletins. There are some very creative stealth shipping methods, much more creative and stealthy than anything I've seen from SR vendors, and all of them were detected, or they would not have been featured in that publication. Yeah, they can find everything if they are suspicious enough. There's no way to make the drugs magically disappear inside the package.
Likewise, with the shipping location, if it's a large amount, you are pretty much guaranteed to get arrested. If they want to find you, they will find you eventually. You only need to fuck up once. I just operate on that assumption and never order large amounts.