The official term is Scrapbox Project I use the term when referring to something community oriented because I feel uncomfortable calling something a “project” if it doesn’t have a clear purpose.
This page is auto-translated from /nishio/Scrapboxグループ using DeepL. If you looks something interesting but the auto-translated English is not good enough to understand it, feel free to let me know at @nishio_en. I’m very happy to spread my thought to non-Japanese readers.