It’s not about CSA, it’s about illegal content. And laws change all the time.

For example, an individual can generate AI images of Hollywood actors using Stable Diffusion and a decently powerful computer. Said individual had the right to share those images online with a community.

Now however the sharing and distribution of said images is considered illegal in my USA state.

So, are the images said individual created and shared three years ago subject to prosecution? Even if the law went into effect 3 months ago?