All an AI book cover says to me is that feeding a prompt into chatGPT is the PINNACLE OF EFFORT that person is willing to invest in the main attraction point of their work they spend... "sleepless nights" on, and that right there should uncover the puzzle all by itself, lmaoo
As someone who doesn't particularly have the patience or vision for beautifully curated graphics/covers like many writers here do...I'm telling you, please just keep your dignity intact and spend your five or ten minutes on a free editing app and call it a dayyyy. In the rare case that only the cover is AI and the writing isn't, all you're doing is discrediting yourself by association.
In this scheming e-world of AI, you could make the most 'amateur' looking cover and set of graphics, and people won't have a damn thing to say because at least YOU did it! And if they do have something to say, there's your comeback!