Paypal has done, and will continue to do, all kinds of strange things. But yes, USUALLY it's the seller, not the buyer.
Viewing post in No, using Paypal on Itch will not "Nuke" your account comments
I've actually had paypal since I was 17. (Now 36 in two weeks)
I've seen a lot of artists get banned for tax evasion, blaming Paypal for hating furries when they were using Paypal to make money without reporting their income to the government. Yes, thats a thing artists, please don't tax evade, you'll be royally screwed. xD (Not you specifically, just talking about any artist who reads this)
But then after that, they began getting worse about it. It sucks whats happening.