Ya, this had the odor of hoax and/or urban legend from the moment I saw it popping up all over the place. Unfortunately, people tend to spread things like this, because it sounds good and pseudo official.
Meanwhile, you have thousands of people spreading a "feel good" statement that has no validity. Then other people see it all over the place and some people think "geez, this must be true" and either think it's true, and/or continue to spread it.
Unfortunately, this is how a lot of "fake news" stories get spread around the blogosphere all the time. A sensationalized story that has lots of good sounding tidbits, with no legit accuracy, and it becomes widely spread by many other people/sites, and meanwhile, millions of people have already formed an opinion on a false premise (mis-informed). Many times, news stations will actually pick up one of these and run it as "news", to come to find out later it is nonsense.
Just because millions of people are saying something doesn't make it correct :) IMO, this is one of the negatives of the internet, mass spreading of MIS-information is rampant. You got to always try and filter everything as suspect :)