The post was just a quick way to have people take another look at all the plastics in their lives.
Discussion
By giving false information? Why?
Why would I want any further information from a source that outright lies in the title?
It is an estimate. A meme or infogram gives you a fact and picture to give a kind of snapshot of the whole concept. I don't see any lie. What is does for me is stimulate the desire to search for more comprehensive information.