No. For one I don't believe it will replace artists. What I expect is that we will never be able to hold wotc, hasbro, etc to this standard. Which means they'll have an even higher advantage against one-person creators
The artists working for big ones will be using AIGen to speed up their work. Same as using search engines to find info and references
Creators for which the AIGenned cover is enough, won't commission a real artist anyway
I'm afraid that such rule here ( meaning we are social network, not the shop) would skew the scale towards the big ones - they'll be getting more coverage, even here

Mostly stuff that is not fantasy and not a spaceship

I don't suppose I see all that is happening in modern+ RPG branch (niche?). But I do support a few creators on Patreon, I follow a few creators on DTRPG, I follow a bunch of blogs. And I see all walks of AIGen

• things without AIGen that look well good for the creators that they are able to do the content AND a cover image/presentation
• things without AIGen that look poor but the content is good I would not hold it against the creators to try improve the looks with AIGen. I know that this is the point we don't agree on, I just wanted to point this out
• things with AIGen that have good contents clearly the creators like from the previous point but after taking that decision
• things with AIGen that IMO are crap yeah, this is a waste of everything

That's why I'm more in "let downvotes tell the story" camp. Because in the end it's not the use of AIGen that makes a thing bad. It's the decision of the creator that "this is good enough". And without covering the bad stuff too, we are just sweeping it under the rug

I have an example where I'm sure the dry presentation does a disservice to the content. For someone who does not care about AI vs no-AI, it will look less professional than the titles next to it. But I don't want to turn this into a vivisection of a particular example

I'm afraid it's not an excuse but the reality. Whatever the reason one does content for, whether it's additional income, trying to change career or just clout, without reach you don't have an audience. In order to have reach, someone has to choose to click on that link in the feed. I am sure that an image does help with that And stock art places often either have non-stock art pirated anyway, or there's nothing in there