Twitter's Substack Link Restrictions Spark Backlash and Substack Launches Alternative.
Twitter is restricting promotion and visibility for tweets with links that contain the word Substack, disabling likes, replies, and retweets. Writers embedding tweets in their Substack stories are affected by this issue. The problem comes after Substack announced Notes, a Twitter competitor. Twitter's new API policies have caused problems for various companies, and many people who have run bots on the platform have been posting about how they can no longer post like they used to.