First of all Paypal is not a bank! Read the agreement, you have signed with them. There is not protection or bank safety- they are no bank at all.
"1.1 PayPal is only a Payment Service Provider. PayPal helps you make payments to and accept payments from third parties. PayPal is an independent contractor for all purposes, except that PayPal acts as your agent only with respect to the custody of your funds. PayPal does not have control of or liability for the products or services that are paid for with our Service. We do not guarantee the identity of any User or ensure that a buyer or a seller will complete a transaction."
(You have have accept that by using the service- you should know it.)
By the way this is the same to Alertpay.
The only thing that makes people use Paypal is that it is worldwide available.