Just got an e-mail from PayPal with a notice of policy updates. I didn't see the update on their site yet, so I'm paraphrasing it here:
Unless you opt out, you will be required to use arbitration to settle any disputes with PayPal. You also will be prohibited from participating in any class action lawsuit against PayPal.
Of course, you can always opt-out. And I'm guessing that PayPal will cancel the accounts of anyone who opts out.
Yes another reason why I don't use payPal for payments.