Fast-Growing Social Apps Are Trying to Clean Out Their Darkest Corners

Yik Yak, Meerkat and more look to purge bullies, trolls and criminals

"Don't feed the trolls" has never been a more relevant piece of advice. The Web's established social media players as well as startups are trying to not just starve the trolls but to silence them in a battle against a toxic atmosphere that can sometimes scare users and advertisers.