I was very frustrated and stressed out when I first started selling things on Discogs, waiting for positive feedback so I knew they received the record ok. Or feeling bad when the post office damaged something and I'd refund or discount something. And at one point I also felt like I was just going to unlist all of my records when I got my first Discogs invoice.
Now, I've learned much and tempered my expectations and its so much better. Its just a hobby and the refunds and other issues are few and far between.
Here are some things I keep in mind and practices I do now to enjoy selling:
1. Most people aren't looking to screw you over. The ones who are are not worth worrying about.
The customer isn't your opponent or adversary. Winning against potential 'scammers' isn't the goal. There are no 'tricks' to catch scammers or hacks to get PayPal to not enforce their own rules.
2. Grade it right the first time. Grade it when you list but also take the time to grade it again before you send it. I've messaged buyers and said "hey this isn't the quality I thought it was, I'm going to throw it in your box but refund you for my error". To me it was better than gambling on whether they would be upset.
3. Pack it right. If you sell, then you probably buy enough records to know when the packing is right, when it works the outside of the box can look like shit when it arrives, but that record is perfectly fine. For example; too much space between records and they move around and get seam splits, or not having padding between records. Use a box (like VMP, Bull Moose, Plaid room) that has overhanging sides that will take corner impact. If you cant get those boxes, I have never had a complaint about the
cheap standard boxes because I wrap every record in
bubble wrap before it goes in the box and tape each side so it is solid.
4. CYA. I used to say I'm not responsible for shipping but you certainly are and should be to a certain extent. So to cover myself for what's out of my control, I use Pirateship to ship almost everything now because I can get reasonable insurance on Media Mail, Priority and international. I charge $5 to ship one or two records in the US. the cost is $3.11-$3.88 depending on weight. The overage was for supplies and my time as I also take everything to the post office and have it scanned. So now I spend .60 to add up to $100 worth of insurance on every package. Also, if the record is over $100 I send free Priority 2 day,
which includes $100 insurance automatically (which Discogs doesn't tell you if you use their service).
Sometimes, because of discogs shipping calculator a 3 LP album bumps people into my next shipping price which is $8, although 3 LP's in one sleeve dont bump the Media Mail price. In that case, I bump people up to priority and they love the faster shipping and I get included insurance.
Since I've adjusted the above, I haven't had a complaint/issue in a long time.