I skimmed the link you provided. Yes, that seems to include solid advice. Good for beginners, nothing new to me, since I (somewhat) followed the AI hobby enthusiast community since LLaMA1. But I have to look up what writing all caps does, I suppose that severely messes with the tokenizer?! But I've seen the big companies do this, too, in some of the leaked prompts.

And I guess with the "early" models from 2023 and before, it was much more important to get the prompts exactly right. Not confuse it etc. That got way better as models improved substancially, and now these models (at least) get what I want from them almost every time. But I think we picked the low hanging fruits and we can't expect the models itself to improve as fast as they did in the past. So it's down to prompting strategies and other methods to improve the performance of chatbots.