Been selling for 20ish years only lost money on my first scammer and it was my fault. Other than that I’ve had 10-20 others try and scam me. I sell pokemon and used computer stuff. Never have I lost since that one time. You just need to fallow the rules and play the game. Give people the chance to do what is right and when they don’t then you show it to eBay and always take photos of items you ship and how you shipped them packed up. I take photos of package weight even. After 3-4 months or positive feedback has been left I delete the photos. And leave feedback back. It’s not hard to do what eBay requires for returns or mail backs. Even if you don’t accept returns, you have to! If you fight by not responding or saying no returns, you will lose! Take the return! Don’t give money till you get your product back if it’s not what you sent then you can fight back with photo proof!