Hey

,
Here's a horror story for you, very sad also:
https://www.epicnpc.com/threads/1138041-Paypal-Chargeback-by-Jamidoo
PayPal rarely sides with the seller from all the threads I've read. The person has a big window to chargeback, 180 days iirc? I say that but I recently sold a WoT account, basically I'm not moving that money until after 2017 so I'm sure it really is mine, although I used a ID verified guy on EpicNPC and he has feedback etc etc
As the famous saying in EvE Online goes "don't fly what you cannot afford to lose" and I'd say the same here, go into this allowing that someday down the line it will happen.. save money for that rainy day in PayPal so you're not spending money you could be chargeback'd on. If you made 50 sales in 1 year worth 2,000$ leave yourself at least 400$ in your pocket ready to fix anyone who puts you in the red.
To minimize it happening, look for people who have feedback.. look for people who have their ID on file with Epicnpc like myself, read through some of their posts if you are really paranoid to get a judge on their character but really that last one is not so useful, people can change when money is involved.
Look at the scam threads on EpicNPC, you'll notice it's very very rare to find Skrill chargebacks etc because PayPal is more like gambling if you get the money vs actually having it. Thousands of transactions regarding digital goods go through fine but all it takes is a few bad big transactions to put you in trouble. So to sum it all up:
Reduce it by going only with reputable people on here to begin with, build a float of cash and then deal with the grey names.. the grey names are going to involve more risk because they have less to lose.
Admins
Mods
Power sellers
Long term members with feedback
ID verified
In my head the person would see me less likely to scam because my ID is on file here, then again I could be a complete donkey and not give a damn but .. I'm less likely to give someone my ID and then scam on their site right? makes sense in my head at least

again calculated risk.. I'm just less of a risk than someone without their ID on file, see what I'm getting at?
Make good decisions and goodluck