I think this is a cognitive bias caused by, e.g., me not rushing to the front page fifty times in the last four years saying "Guys WTF Paypal just paid me a thousand dollars on time with no hassles."
I hope you won't mind me lifting that line and repeating it as my own in the future with no attribution ;) It spells out exactly what I want to say every time I hear the "WTF PayPal suxx" debate.