For the last 41 days, a Twitch user named Mosheddy has been persistently harassing a streamer named Tanya DePass. She quickly banned him from her channel, but now he lurks, follows her to other people’s Twitch chats, sends private messages to everyone he can, and has friends drop into chat with messages “from Mosheddy.” Twitch hasn’t banned Mosheddy, and DePass doesn’t know what to do.