many seller has big problem with paypal charge back, that is true, paypal is more like to protect buyer, not much seller, some buyers are dishonest, after you recived products from buyer then file a claim to seller to charge back or charge back with creidt card company, seller has to proof the shipment tracking number, then this dispute process take a months, lucky seller get back the money, the bad news if you ship internationally, you may not have tracking number, so if ship internationally , seller has to use usps or dhl that cheaper shipping company,,,
there is more... if anyone has same problem before , you can post your comments here, or ask any question here. i will answer all your question as possible.
