more on the accent thing:
Before social media, you spoke to different “audiences” — family members, friends, colleagues, and so forth — in different ways. You modulated your tone of voice, your words, your behavior, and even your appearance to suit whatever social “context” you were in (workplace, home, school, nightclub, etc.) and then readjusted the presentation of yourself when you moved into another context.
a social network, the theory went, all those different contexts collapsed into a single context. Whenever you posted a message or a photograph or a video, it could be seen by your friends, your parents, your coworkers, your bosses, and your teachers, not to mention the amorphous mass known as the general public. And, because the post was recorded, it could be seen by future audiences as well as the immediate one. When people realized they could no longer present versions of themselves geared to different audiences — it was all one audience now — they had to grapple with a new sort of identity crisis