Elon Musk and Substack CEO clash over Twitter censorship accusations.

Substack CEO Chris Best responded to Elon Musk's claim that Substack was "trying to download a massive portion of the Twitter database to bootstrap their Twitter clone" by saying that Substack has used the Twitter API for years and thinks they're in compliance with the terms of service. Best also expressed frustration with Twitter's actions, which have a greater impact on individual small business owners who use Substack as an enterprise software provider.