From the Guardian http://www.theguardian.com/film/2015/mar/18/ashley-judd-to-press-charges-twitter-sexual-harassment?CMP=ema_565:

"The actor Ashley Judd has said she will inform police about Twitter users who sexually harass her, and press charges against them."...

...Her stance comes as other female stars have stopped using the social network thanks to abuse. Rapper Iggy Azalea wrote that social media “is too negative and draining” and handed her Twitter account to her management, while Lena Dunham said: “I deleted Twitter because I’m trying to create a safer space for myself emotionally.”...

....[T]he company’s CEO Dick Costolo wrote: “We suck at dealing with abuse and trolls on the platform and we’ve sucked at it for years... I’m frankly ashamed of how poorly we’ve dealt with this issue during my tenure as CEO. It’s absurd. There’s no excuse for it.”...It shouldn’t be the person who’s being harassed who has to do a lot of work.”