Who needs friends when you have anonymous feedback apps?
If you think that sounds like a recipe for abuse, well, you’re not alone. With such rapid growth — it now has 300 million users — Sarahah has raised concerns among parents and educators that it’ll be a haven for online bullying, especially because it’s such a hit with teenagers and young adults. But perhaps a larger question is: Why these anonymous apps have such appeal in the first place, and…