Yes indeed. I have been having a gas there on Quatloos over PayPal's losing faith early, as demonstrated by insisting I show confidence in the Fed before they would invest any confidence in the good faith and credit of the US dollar on account with them. [They have $23.80 of mine they will not let me spend until they have my SSN and birth certificate information.]
I noticed something - I don't think it applies to PayPal though:
(1) The Government withdraws its consent given to anyone to assert against the Government, its agencies, or its officers, employees, or agents, a claim—
(A) on a gold clause public debt obligation or interest on the obligation;
(B) for United States coins or currency; or...
Interestingly, I was hearing about this in church a couple years back.
Guarding the Sanctuary on the Spiral.