It honestly depends on a community. On Ten Forward, where I’m a mod, we have banned AI posts because, at least this was my reasoning, they never do Star Trek right. I also mod on Lemmy Shitpost and, in general, I’m pretty lenient with them there as long as it isn’t so lazy that someone practically typed in ‘funny meme.’
That said, I’m also on another forum where an AI art thread that began with the first Dall-E has become mostly us finding ways to put Godzilla in ridiculous situations. Now that is a fun use of AI.