Twitter's Substack Ban Sparks Backlash from Writers and Users.

Twitter's recent ban on the promotion of Substack newsletters has caused problems for Substack writers who rely on Twitter to attract new subscribers. The ban means that users can't like, reply to, or retweet tweets that link to substack.com. This severely limits the ability for newsletters to spread on Twitter, which can hurt their ability to grow a business around it. Some Substack writers have custom domains, which skirts the ban, but the policy change impacts the vast majority of newsletters on the platform, including some of its top names. The move has caused some Substack writers to consider leaving Twitter altogether.