AI has just accelerated what has always been out there. LinkedIn has more or less always been a place where people write scripted BS stories, AI just made it a lot easier.
I don't like this "just" framing. It's like saying that crushing orphans was always a thing and Microsoft Orphan Crusher 2000 is just making it easier.
It's a qualitative change. It used to cost time and effort to produce slop, which gave genuine content a fighting chance. Now, the cost is basically zero, so there's no limit to how much trash you can produce.
Making things easier (or cheaper) is the entire point of AI. If AI is great because it makes writing software easier (or cheaper), then AI is also terrible when it makes publishing slop easier (or cheaper).
It's a qualitative change. It used to cost time and effort to produce slop, which gave genuine content a fighting chance. Now, the cost is basically zero, so there's no limit to how much trash you can produce.