Yes, it's very easy to use AI poorly. But, it's also possible to use it for RPGs in a useful and productive manner. Last week I was putting some finishing touches on a module I've been writing and asked Gemini what it could do to help me proof and edit it. It came back with a multi-step process using multiple Google AI tools with specific steps, prompts and things to look out for.
It included some simple grammar errors like it's vs its my editor missed. But it also caught (correctly) a misnamed NPC. i.e. one of the intro NPCs who gives the party a job is named Mr. Johnson, but it cited a paragraph and sentence much later in the story where I referred to the NPC as Mr. Smith.
When prompted to check for structure etc, it came up with a suggestion that one of the plot/location points in my adventure only had one clue leading to it and the party might miss that clue. It was right, I had meant that the path between points 10 and 11 where self-evident and effectively the same, but that wasn't clear in my adventure.
We all have seen adventures from the big publishers miss things like that. Yet in this specific case it made some trivial (but good) suggestions and even what I consider a fairly significant one.
And if I keep that plot improvement, do I list on DriveThru that I used AI to help? I probably should right, but then some segment of the market is closed to me even though I suspect many of those people who would just have AI content filtered out automatically would place me in the same group as those that the entire adventure is written by AI with just cut and paste into a document. Or, do I remove that fix from my module, and publish it with a known error, all becaue AI informed me of the flaw?