my bro lost $125 to cyberrebate.com. the way it worked was you paid an outrageous amount for something, then they would give you a rebate for most if not all of it. he paid $125 for a toaster or some sh*t. i think what they would do is invest that money, then give you a rebate back. well, they had some dumb investors because he never got his rebate. they went belly up. and he has a very expensive toaster.
i think this is what the poster is worried about. paypal going belly up. you're left with bankruptcy court and all that crap.
me, i am not worried about it because i am very well off financially any way. i just paid for an auction today with pay pal. it's very convenient.