Reasonable people know how to use a dictionary:
"websites and applications that enable users to create and share content or to participate in social networking"
Right. Because some people use it that way and dictionaries have (not inappropriately!) leaned strongly descriptivist for decades. They should have such a definition in them.
Meanwhile, I'm not sure what about my post prompted you to jump to suggesting I'm an imbecile.
Reasonable people disagree over whether it's appropriate to label any piece of software in which two or more people interact "social media". I tend to think it renders the term uselessly broad.