I'm going to go against the grain and ruffle some feathers here and say that using Goods and Services is not the end all be all here.
This hobby deals with very finicky equipment that nobody outside this hobby deals with or knows anything about. Goods and Services protect the buyer, but not necessarily the seller. This entire community is built on a level of mutual trust and reputation means everything. I'm not going to say names, but somebody on this thread calling others stupid for sending Friends and Family to people certainly had no problem sending me over $2000 via Friends and Family despite having never dealt with me ever. Funny. Take with that whatever you want.
If we don't care about trust and reputation then we might as well just sell all our stuff on eBay.
"Joko what the fuck are you talking about???" you ask? Let me give an example of something that happened when I did the proxy services, and how a bad actor could have made me have a bad day.
Below is a video of a 100% working CPS3 Third Strike ON BATTERY that I bought for somebody on this forum. They paid me the exact money I needed to purchase it via Friends and Family (let's say the equivalent of $850 for easy math later). After testing, packing, and shipping the additional charges came to $150; $100 to ship and $50 for time involved in communication, purchasing, testing, finding a box, packing, taking down to the post, etc (at least 3-4 hours total).
View: https://www.youtube.com/watch?v=Zjc9wh47VDM
and here is how I packed it (for those who have never dealt with me)
What happened next? Well, turns out that the 25-year-old battery didn't dig the trip from Japan to the middle of the US in the middle of summer, and it died on the way. It didn't explode but died nonetheless. Luckily, the buyer was cool about it and was a player, not a shelf queen. As soon as I and other people on the forum helped him diagnose that the game wasn't working because of the dead battery, he simply made a Darksoft Multi out of everything. Luckily, this was a buyer whose friend group I had two interactions with already finding CPS3 kits for them. They use all three at their local meetup.
Now, how could this have gone bad for me? Let's say the guy was a shelf queen and not a very active member (so he doesn't care about reputation). Had he paid Goods and Services he could have filed a claim with Paypal in which case I almost guarantee they would have sided with him. My video evidence of the game working and packing pictures would have likely meant fuck all to them as my multiple bad experiences via eBay have shown me. Seeing how the package was not damaged there is almost no chance of shipping insurance paying out anything.
If PayPal sided with him I would be:
-$850 for a game I never even owned
-$100 for shipping
= $950
Remember, this is a game I never even owned. I would be screwed if the buyer refused to be an adult about the situation.
I would also lose out on the $50 I would have earned for doing the work, not to mention wasting 3-4 hours of my time.
What I don't know is if PayPal would make them ship the game back or not, but I'm guessing not. Let's say yes though. The dude could easily just ship it back in a box with no padding because fuck it, it "didn't work" anyway right?
Let's change the situation and say that it was an item that I spent $600 on a few years back. I'd still be out the $600 plus $100 shipping because the buyer didn't accept the possible risk of the battery dying. However, if this did happen if it was my item, I would have offered a full refund upon safe return of it in the same packing I shipped it in. Alternatively, I also would have offered to pay for two-way shipping of the cart to somebody to turn it into a multi; it's money out of my pocket still to do this, but I believe it would be the right thing to do. However, with the proxy service, I outlined all the risks involved clearly in my terms and conditions, and with very few exceptions everybody who dealt with me had a positive experience. I helped the buyer diagnose the issue and guided them to the solution.
In conclusion, I'm not saying that Goods and Services are bad, but it does have their bad side that people can take advantage of just like Friends and Family. We need to treat this hack as an isolated incident and decide which payment system to use in the future on a case-by-case basis. Selling a $1000 item to somebody on an internet forum can be just as risky as buying it.
Don't rush into transactions you aren't sure about and always be prepared to take a risk. This isn't a store and in no way should it be treated as such.