Subdividing it inside its main title keeps it neater on the outside.
I'm doubtful about putting the beginner stuff into a subfolder. It needs to be front and centre with klaxons and flashing lights. And still no-one will read it.
* Curation - that's a curly one, I'd volunteer but feel that I'm a bit too OCD/passive aggressive to be objective with really stupid punters ! and perhaps my C/C++ knowledge is a bit thinner than many of the senior guys here.-- even some of the threads I started have veered off topic, but because I'm not a mod, I can't trim/move the irrelevant posts (!) which they need. I feel like I'm bothering the mods when I suggest a thread should be moved or deleted.
Project Guidance and Programming - to newbies ("my LED doesn't work") are the same thing, but to more experienced users, there is a distinct difference