@TKb0iZ Instances generally do respect deletion requests. It's rare that they don't delete.If an instance is not deleting federated posts, you might want to ask the admin of the remote instance if they are aware of this failure. It may be a technical fault that they can correct.If the remote admin refuses to fix the problem, you might want to tell your own instance admin about it and they may take action regarding the remote instance such as limiting or suspension.