After the fall of Silk Road, Evolution had become one of the major illegal marketplaces on the dark web. Over night the black market site shut down completely, with reports that it's admins took off with the $12 million of Bitcoin in their accounts.
Twitter, and social media in general, can be an extremely unfriendly environment. It can get so negative that some celebrities feel the need to step away for their own sanity. Lena Dunham deleted the app from her phone, and now only tweets via proxy, and Iggy Azalea just quit it entirely. Ashley Judd is taking her response a bit further, she plans to press charges on the people who bully her on Twitter.