The surface area isn't always all that big. The student's essay, cited in the article, had to do with comments she made within the walls of a college classroom. And I think that essay (if I didn't mix it up with another one) talked about students getting lambasted on social media for their comments in class.

I think among the action items that TFA suggests for discussion, another could be: "What happens in class stays in class." If a student needs to be called out for egregious behavior, that can be handled by the teacher.

Also, things like electronically submitted essays and papers need to be deleted from any kind of server or database once the class is finished.