Earlier quoted context omitted.
Because that's not how long it takes for money to really clear a credit card when banks are involved.
Well then one business day would be an improvement on cash flow vs a typical bank... or am I an idiot? Obviously it's hard to compete with Amazon on commodity products, but it seems like they are lowering the barriers to entry for many unique retailers and small businesses.
Anyone who relies on PayPal today already accepts the risk of having their account/funds frozen, and there are already many horror stories of businesses having tens or hundreds of thousands of dollars locked up for a three-month investigation (only to go bankrupt in the interim).