Open my generator in private mode: https://perchance.org/ai-art-generator-advanced, there's no content, the page is almost blank, but it is labeled as NSFW, I deleted everything over 8 hours ago before creating this post.
Edit: I had to put the gen back to normal because there are people who uses it. But I took a screenshot, look, there's nothing nsfw: 
Another problem that i will just copy paste from another comment:
"the 'Content Warning' should detect when the 'nsfw words' are from the generator content warning, if i put a warning message i get another and then the gen is set automatically to private and the meta don't appears on google... But if i remove the message from my page, that have potential nsfw content created by others or that can be found in searchs, then the message is gone and now i have a generator with nsfw content without any message..."
The problem could be solved by using an imported page, so I can put lists and regex to prevent people from creating nsfw without being punished for it... But things are different with the Ai art generator advanced, is there any way to solve this?
There is, gallery and comments have nsfw, the gallery may be a bit difficult because there's 3 or 4 filters to prevent "accidental viewing", but the comments not, people always asks "what prompt to make a woman doing that" or "how to make big sticks", that's why the 'self-warning' is in there and it exists before this automatic content warning.