I don't think it matters if people are interested in it or not, it will feed the streams and make them largely useless. Filters will need to be applied, but what it will ultimately come down to is proof of human in some way. As you have rightly said about Rogan, it is the personality that matters, not the content.
as soon as it seems like your content is not your own I guarantee people will lose interest...
Exactly. This is why I am pretty strict with making the content mine, rather than some kind of thesis collated from the work of others, if that makes sense. I might not be right, but it is me that isn't right, and I am okay with having that conversation and discussing it further.
I'm sure you feel very vindicated at the people who laughed at you, all the predictions you listed seem pretty reasonable.
Vindicated perhaps, but not happy. The world could be so much better, but we keep making choices with our behaviors that lead it in the other direction most of the time, on things that are pretty simple at the core.
The platforms will have to be good with their filters because their entire business model depends on it. If people can't find the Joe Rogan podcast then Spotify's investment was a waste.
I think what it does is make it more important to already be famous - or be hand selected to be boosted.
That's exactly how Spotify already operates... but I think it'll still be possible for people to go viral - people want great content, but I think we'll all just get better at figuring out what is GenAI and what isn't.