One way to check for legit posts is to look at the website it is posting from. Doesn't look legit to me! Some will try to come close to the name of the website to try to fool you.
These posts going around Facebook right now automatically post in the groups you belong to when you click on them. Please look at these examples and don't click on them when you see them on your page. Let the person who posted know and/or report the posts to Facebook.