Paypal (and probably Stripe?) are notorious for freezing customer accounts with little to no explanation, so to answer you question to what if they did that...p

Paypal (and probably Stripe?) are notorious for freezing customer accounts with little to no explanation, so to answer you question to what if they did that...probably nothing? Paypal or Stripe or Square are not any more obligated to do business with a particular customer than anyone else is. They can always accept cash, checks, Bitcoin, barter.