Read it again. I have 2-year-old images that won't open. 10% of the others failed before five years, and another 40% of the original amount before 10 years. I don't really care about those images anymore (from an old job) so I didn't bother to back them up after I discovered the failures five years ago. I'm now just curious to see how long before they all fail.
IMO, jpegs suck. But my only digital camera now, a P&S, only takes jpegs.
You realize that your failure rate applied universally destroys the entire business model of Flickr.