This certainly seems like a neat system. From the FAQ, two things I was most concerned about knowing:

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How does Radicle deal with potential abuse, illegal content sharing etc. on the network?

Each node is free to choose which repositories to host (seed) using configured policies. Nodes can block specific repositories or peers exhibiting abusive behavior.

Is there a way to host private repositories on Radicle?

Yes, Radicle supports private repositories that are only shared among a trusted set of peers, not the entire network. These are not encrypted at rest but rely on selective replication and are thus completely invisible to the rest of the network.

https://radicle.xyz/faq