This is not true. You can put no returns accepted when selling on Swappa and Ebay. If the buyer has a problem they can contact the seller and try to work it out but the seller has no obligation to return. I even state in the sales listing all sales are final.Selling on Swappa/Ebay to avoid getting scammed isn't great advice.
A buyer on there can claim the same thing after tampering with it and in those cases, PayPal/Ebay will make you refund upon return. PayPal (the payment processor for Swappa) allows returns up to six months now and Ebay does not allow you to leave buyer feedback as of nearly a decade ago. They will ALWAYS side with the buyer unless they've shown a pattern of abuse of buyer protection features. The upside to selling online is that you'll usually get more money, even after fees/shipping. I've sold hundreds on several platforms. Amazon doesn't allow apple products anymore unless you're doing 7 figure sales every 6 months, I believe. Even then, you have to apply for authorization. MR did a story on this a few years ago.
Selling in person at a safe location like a Police Department is the best way to avoid getting scammed. I've bought several devices like this and most even have an online transaction meetup spot. I'll use hotspot for internet to try it out. Never had an issue.
Telling buyer he's out of luck might get her banned if she sold on FB marketplace or something like that. But she can be proactive in reporting him first. If it was something like CL, I would simply tell him all sales are final.
I agree that if you are going to meet to sell an item the Police Department is a great and safe choice. The problem as I see it is the buyer has more personal information like a phone number. If they are a thief they can get your home address and identity this way.
So I recommend selling via a third party where your personal information is private. Swappa is my personal choice for selling electronics but there are some brands they don't list so then eBay is what I use for the rest. I have helped many buyers with software issues after sale. I try to accurately describe condition even if I have to lose money. I would rather over deliver than have a problem later.
In this case the seller and buyer met in person and everything was fine. The buyer had plenty of time to inspect the device before purchase. Then after 15 minutes the screen went bad. The seller had the device and never had an issue until the buyer took it away. To me this smells fishy.
Hardware generally doesn't work for a year and then fail in 15 minutes-UNLESS it had a catastrophic accident like a drop. All it takes is a second to drop a laptop and have a hardware failure. Generally if the screen was failing it would most likely have had flickering and then maybe intermittent failure and then total failure which would have taken at least a few days.
To me this seems like the buyer dropped the laptop and realized they had a problem and tried to return it to the seller right away. The buyer also could have had a similar laptop with a bad screen and swapped the screen out.
The main point is the seller has no idea what happened once she completed the transaction. Used items sold by private parties do not come with ANY guarantee unless the seller provided an extended warranty. Buying used items is at your own risk.
The seller has no responsibility towards the buyer in this case. People can say what about buyers rights and what if you were the buyer all day. I have been the buyer and that is why I don't buy high end electronics used unless they have an extended warranty. On the flip side we don't know if the OP ever dropped the laptop. Could there be a hardware issue just waiting to happen? Who knows. The responsibility of the seller is to describe to the best of their abilities the condition of the device they are selling accurately and if the buyer decides to buy and make the transaction her responsibility is over.
As the seller said how long should they be responsible for a device they no longer possess? All it takes is a few seconds to drop something.
I understand if you just bought something and it fails that sucks but then all you can do is learn a lesson and move on.