err....this is news?
being mildly paranoid about interweb safety I run Apples/Linuxes without flash, with noscript and betterprivacy and with OpenDNS blocking pages and pages of domains and stuff in the cloud before it gets near me, (like the entire .cn domain)
recently, I attempted to buy a weeks holiday in spain, nice resort 600 squid, but I couldn't complete the booking, I got 99% of the way through - but something didn't let it go through. I started tinkering and permitted scripts, allowed this allowed that, but it wasn't until I let loose the dogs of GoogleAnalytics that the payment page worked - problem was the price changed to 300 squid!
I said YES and paid. (imagining that if it was a flaw in the backend that the famous company would phone me up for a chat and say NO) got email a day later thanking me and the enclosed receipt showed that holiday was 600 squid plus 300 squid special discount, so yes, either it wasn't an error after-all, or 'special discount' mentioned nowhere else is just a way of reconciling a puzzling GIGO transaction. I assume the first option. Shields now back-up, to be taken down step-by-step next year?
it sometimes pays to be paranoid