github has moderation - https://github.com/settings/interaction_limits https://github.com/settings/interaction_limits - https://github.com/<user>/<repo>/setti

github has moderation - https://github.com/settings/interaction_limits https://github.com/settings/interaction_limits - https://github.com/<user>/<repo>/settings/interaction_limits https://github.com/<user>/<repo>/settings/interaction_limits and users can block other users - https://github.com/settings/blocked_users https://github.com/settings/blocked_users