Takes away some of the anonymity though, even with domain registrar obfuscation etc., they'd probably disclose the owner to a request from whatever authority comes knocking. And if you're based in a jurisdiction where piracy is explicitly forbidden, federating with db0 and effectively co-hosting links to prohibited content might open a whole other can of worms. And not everyone is technically competent enough to run and maintain an instance, even if the initial setup works out with one of the how-to's.

and if you're really technical and really want to you can even bypass other people's defederation attempts against you.