I read that with a bit of nuance, like "only the original author or someone who has taken control of their resources" or something although you're right that so

I read that with a bit of nuance, like "only the original author or someone who has taken control of their resources" or something although you're right that some care would be needed in considering a statement like that. I understood the statement relative to the case where someone else centralized ultimately has control of your content, like Twitter. The other extreme is some decentralized equivalent to the case of hard-encrypted files that are only openable to a person with special knowledge. There's lots of grey there, and decentralization opens up lots of questions, like "does any one person really have control over content in a decentralized system?" I guess the comment seemed too fuzzy to me to be interpreted in much detail, so I was willing to flow with it, at least to some level.