Twitter campaigns attacking those who make racist or xenophobic statements are valuable in the sense that they show such opinions will not be tolerated. But there is concern that social media, such as Twitter, tends to extremes, moral outrages, lack of nuance and incivility, which shape how issues become represented. Using Critical Discourse Analysis, I look at a number of cases (tracing Twitter hashtags) which call-out racist behaviour. My analysis aims to ask how racism and anti-racism is represented on these hashtags. It shows how these misrepresent fundamental aspects of racism in society. This distracts from what race theorists would argue is the most important thing these incidents tell us about racism at this present time. The findings have consequences for all such Twitter social justice campaigns.