Hello @debxyz,
Excellent topic to bring to the forum!
I am aware of these:
1. Guidelines—Tips on Asking Questions
2. Guidelines—How to Answer Questions
3. https://discourse.processing.org/faq
1 and 2 are prominently pinned on the main page if I am not signed in.
3 is available in the hamburger 
on top right as a FAQ.
This subject has been pervading my thoughts of late and I have been reflecting on what is best for the community.
:)