The plugin was created by altrightmedia, with no one person yet coming forward to claim authorship of the program. As Mic explains, it is sarcastically named Coincidence Detector in the service of a conspiracy theory that suggests that all Jews are engaged in a bid to undermine society. As Mic explains, the parentheses were popularized by right-wing website the Right Stuff, which suggested that all Jewish names have an echo. When used, it can provide a signal to far-right groups to target named Jewish people with insults and threats of violence. Motherboard reports that the symbol is already being reclaimed by Jewish writers online, who have added parentheses to their Twitter names. Now that the plugin has been withdrawn, other white supremacists will have to get working on fresh code -- which takes ages when you're typing with just your knuckles.