She presented Substack, a blogging and newsletter platform, as a way to simultaneously stay current and step away from the chaos that often prevails online. Klein did not respond to CBC News's requests for comment, but in a recent conversation with standup comedian and podcaster W. Kamau Bell, she said she had experienced "a really, really lovely welcome" on Substack. LISTEN | The rise of Substack: Commotion with Elamin Abdelmahmoud 24:54 Substack's rise & a tribute to poet/activist Andrea Gibson Vinson Cunningham and Kate Lindsay join host Elamin Abdelmahmoud to talk about Substack, and how the online newsletter platform has positioned itself as the future of media. But over the last few years, users and journalists have noted that a number of Substack newsletters promote white supremacy, Holocaust denial and neo-Nazism. "If we were trying to lock something in," Swierszcz said, referring to writers' content, "none of this would work."