It’s no secret that there appears to be a special brand of Twitter vitriol reserved for women who express opinions online, and that it often comes in the form of rape and death threats. It happened to Anita Sarkeesian when she launched a Kickstarter campaign to look at gender roles in popular video games. It happened to blogger Lindy West when she went on a televised debate to talk about rape jokes. And then it happened to British activist Caroline Criado-Perez when she successfully lobbied the Bank of England to include a female face onto the $10 banknote (replacing Charles Darwin with Jane Austen). Days after the Bank of England’s announcement last week, a corner of the Internet started flinging hate at Criado-Perez. The activist reported receiving “up to 50 rape threats an hour” on Twitter in the 48 hours following the news, and a female member of parliament who supported Criado-Perez’s campaign started getting graphic rape threats as well.