The heuristic isn't going away because we have limited time. Let's say you can clock AI in the first paragraph.

There are lots of places like Linkedin where people write slop articles saying basically nothing insightful, and AI allows them to write at Isaac Asimov or Brandon Sanderson type speeds. AI slop has no cost, so it will always outweigh insightful AI-assisted writing without careful curation. You will have read thousands of articles that begin in AI-evident formats that don't end in anything good.

That will always poison the well of somebody at the end of that first paragraph. They will consider the source, think "What are the odds this is more slop", and often click out.

People who I know don't speak English natively get a pass from me because no amount of effort in the short term is going to substitute for fluency, but everybody else... less so.