You say it as a joke, but spell check has replaced certain tiers of editors. And Photoshop has replaced certain tiers of designers.

Not a joke.

Proofreaders still exist, despite spell checker. Art assistants still exist, despite Photoshop. There's always more work to do, you just incorporate the new tools and bump the productivity, until it gets so commoditized it stops being a competitive advantage.

Saying AI "replaces" anyone is just a matter of rhetoric to justify lower salaries, as always.

Bad ones

Bad by modern standards, there was a point in time where even just compositing two images on top of each other with an alpha cutout was considered a complex task.