Honestly given the quality of Stable Diffusion and similar, you don't even need to reuse the same image posted somewhere else, you can just make it up. So... making such a huge effort...for what? People will adapt to use new tech.

That's a different problem. An important problem to be sure; but different. It's the kind Reality Defender are trying to solve to the extent it's possible and I am afraid it's just a matter of time before we see the effects of this in some crisis point when we can least afford the time to make sense of the firehose of falsehoods (nice phrase btw).

https://realitydefender.com/