Marketing copy has been using this rethorical artifact for decades, as well as journalism with some success, it is like an analogy, but pruned down in meanin by the opposition. It is impactful, and probably got high marks with the humans doing RHLF, that I suppose, came mostly from journalism and marketing schools.

Professionally typeset books. Designers have been typing it—and the other dashes—manually using modifiers+hyphen on Mac since 1984. You can type them—plus the bullet character—today on iOS by doing a long press on the hyphen key.

I think it comes from the RLHF. If you haven't interacted with LLMs enough to get turned off by it, I think that kind of speech is seen as powerful and confident.

I wonder this too. Is there so much of this style, or does it indicate some aspect of the LLMs’ sensemaking?