I think you might be better off getting rid of the "AI slop" entirely. Without getting into the whole ethical debate (it's worth having, but not here), putting it front and center on the website for a new retrocomputing magazine is kind of like putting an article about new features in Microsoft Word front and center on a website for mechanical typewriter enthusiasts.
I disagree. Making high quality niche publications like this economically feasible is exactly how AI could be used to actually benefit society. I see no evidence that this site is a plagiarism mill.
All the retro computing people I know are computer nerds, and like playing with new shiny software, including llms.