[blip54321]

I think the line should be drawn at intentionally lying.

I also do think that all sorts of conspiracy theories ought to be taught. Teach flat earth along side round earth, and both geocentric and heliocentric. We all believe things which are false. Introducing a few intentionally has few downsides, and is a good context in which to develop critical thinking.

I do think intentionally lying -- especially when done by government employees, academics, and government contractors -- should be a borderline criminal offense.

I also think profit motive is a good place to draw lines, but I'm not quite sure how. Free market dynamics force disinformation. If that what gets the most ad clicks, that's what you'll see.