You would need to inject too much information and then it's trivially removable by passing it through any noise removal tool of choice. I suspect just deleting the comments and doing the ponytail thingy will be enough.

At some point it would just be verified accounts for social media and some carveouts here and there, and fines for noncomplience in misattribution and mislabeling.

Or we get into zero trust territory where everybody would assume everything is generated and can't be trusted, unless it's their in-group aligned signaling system.