I use it for this a lot.

no example? Is the concern that old timers will say "that's nothing! check this out!" or that somehow it gives you a competitive advantage?

nothing against you, this is endemic on tech forums and even non-tech spaces. It's not like it's even your IP! Why all the secrecy and braggadocio?

Is it 'only' "aggregating details from twelve different man pages" or has it 'studied' (scraped) all (accessible) code in GitHub/GitLab/Stachexchange/etc. and any other publicly available coding repositories on the web (and for the case of MS the Git it owns)? Together with descriptions of what is right and what is wrong..

I use it for code, and I only do fine tuning. When I want something that is clearly never done before, I 'talk' to it and train it on which method to use, and for a human brain some suggestions/instructions are clearly obvious (use an Integer and not a Double, or use Color not Weight). So I do 'teach' it as well when I use it.

Now, I imagine that when 1 million people use LLMs to write code and fine tune it (the code), then we are inherently training the LLMs on how to write even better code.

So it's not just "..different man pages.." but "the finest coding brains (excluding mine) to tweak and train it".