PayPal sucks. They collect a 3% fee from merchants and regularly freeze your money when they assume that you have “suspicious activity”.
Sure, if you provide all the necessary proof you will regain access to your money. But is it really worth it to go through this absurd bureaucratic hell when you have Bitcoin as a real alternative?
Today, thanks to powerful open source software such as BTCPay Server, anyone can set up a store and accept payments in Bitcoin. It's fast, it's easy, and nobody will ever be able to freeze your money.
It's also what ShopInBit did, as today they offer you a 3% discount for BTC purchases – which is their way of saying thank you for not making them deal with PayPal ⚡