An invitation-only strategy is definitely a great way to ensure the high-quality of community, which can significantly reduce the spam users and contents risk.
I want to show my links to confirm myself,
blog: https://informal.top/
Github: https://github.com/wa008
YouTube: https://www.youtube.com/channel/UCgbPzVKmfLZSlZqDe_-CXkg
If someone could email me an invitation, I'd appreciate it. zphu1024[at]gmail.com