What are your thoughts on this being solved by the negative of the situation? So, instead of having to vet every single stream, tweet etc to check if it's legit, basically the idea is that you shouldn't "trust" what you are seeing unless it's explicitly endorsed via a signature from the original creator.

Obviously, if it's coming from their official channels the "signature" can be more obvious, but a layer that facilitates this could do a lot of good imo.