[TranquilMarmot]

The article is implying that corporations take from black teens specifically because they want to seem "black cool" (such as the case with IHOP using "on fleek" in marketing). In America a lot of what's considered "hip" has come from black culture- jazz, hip hop/rap, clothing, slang etc.

A majority of people who listen to and consume rap music are white. In the 90's, tons of white people wore FUBU (a clothing brand whose name is an acronym for "For Us By Us").

So I don't think the article is only getting at corporations stealing black teens' viral content, but corporations taking ideas from black culture in general, with viral content being a specific instance.