Brenton Tarrant posted links to his live-streamed shooting on 8chan, a more free speech-oriented version of the popular 4chan. Professor Greg Barton, an expert on terrorism at Deakin University, said racist "shitposting" is common across the internet, and is a way for people to connect and gain attention. "The thing about social media is that it's social. You want some feedback, you want people to like your stuff whether it's Instagram or Facebook", he said. "Shitposting is all about getting your profile up, getting a response and the more ironic and funny you can be the more you get."