Leaving aside the quality of the different posters here, I think the interesting question is where did the default AI generated style come from? It's certainly not one of the styles listed if you interrogate chatgpt, it's not something it seems to be choosing to do.

I think the signature noisy, crowded, HDR-y look shows these posters are being spat right out of a diffusion model. They always have an image background with the classic light halos around text.

When I one-shot a poster out of Gemini or whatever, I can't make anything nearly as bad as the ones I see every day. What on earth are people even using to make stuff that bad?