Hi @npub185h9z..., I'm the creator of gitworkshop, gnit and grasp. A combination of relay an client tools can provide the provide this sort of moderation and control for projects that desire it, but the maturity of git nostr isn't really there yet. Whilst the majority of a project community would likely use these tools that support this moderation, the conversation can spill over into the wider nostr ecosystem and clients built / used that don't enforce this moderation. This is the trade-off using an open protocol thats easy to build on.