tldr: The main point of the article is that while the complete deletion of content on decentralized platforms like Nostr is technically impossible, it is still important to allow users to express their intentions through delete and edit functionalities. These features serve as social signals and provide creators with the opportunity to learn from feedback and make changes to their content. The author argues that supporting delete and edit in Nostr apps will create a more humane and empowering online space for users.