Itβs not a platform itβs a protocol which is why you can run your own.
The solution would be to run your own relay that you can moderate to your hearts content. Maybe try nostr:npub10qdp2fc9ta6vraczxrcs8prqnv69fru2k6s2dj48gqjcylulmtjsg9arpj
Discussion
Ditto is a good idea. I was saying the same about running your own relay as being the best solution I could think of too. As of now!