IMO the owner of the projects should be given those tools, they can decide whether or not to use them, either freedom of speech or moderation is in their own hands.
Given this is decentralized this puts even more power in the owner of a project to decide this than Github so I don't see this as an issue.
Given this is decentralized this puts even more power in the owner of a project to decide this than Github so I don't see this as an issue.