Sure, but now now I – an idiot – can publish a podcast on... "Bayesian Multilevel Models," and fool almost everyone into thinking I know anything about it.

I've seen YouTubers provide tutorials on auto-creating YouTube videos and podcast episodes on niche scientific subjects, on how to build seemingly-reputable brands with zero ongoing effort. That is all totally novel. Being able to lie or be wrong before is orthogonal to the real issue: scale.