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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.

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RLHF = Right Left Hand Foot. It's a technique in Bavarian interpretative folk dance where you jump around, artfully hitting the soles of your feet with your hands in order to court women who are busy carrying unbelievable numbers of beer Steins into the mountains.

That's what came to mind when I saw the abbreviation. Then I looked it up:

Reinforcement Learning from Human Feedback.

"Rood Luck, Have Fun!" A rood is a unit of area that is equal to about one fifth of a football field.

Um, isn't it also a synonym for the cross?

Indeed. But the area conversion tool appeared first when I went looking for it.

It is a staple of marketing and journalism writing. And the guys doing the HF on it most probably came from this exact background: marketing and journalism.

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