Substack accidentally sent push alerts promoting a Nazi publication

Substack, the popular newsletter platform, accidentally sent push notifications to some users promoting a Nazi publication. The newsletter in question describes itself as a "National Socialist weekly newsletter" and includes "opinions and news important to the National Socialist and White Nationalist Community." Substack acknowledged the error, stating that the notification was "extremely offensive and disturbing" and that they have taken the relevant system offline, diagnosed the issue, and are making changes to prevent it from happening again. The company's policy of anti-censorship has been a point of contention, with some critics arguing that Substack needs to take more responsibility in addressing such content. Despite this incident, Substack has continued to grow, adding new features and attracting prominent journalists and content creators to its platform. The company recently raised $100 million in funding and reported a significant boost in paid subscriptions during the 2024 presidential election.