I wrote an article about attribution in open source some years ago (see below).
Being attributed is an important part of your work when you are an innovator. If folks know where an idea has come from, they will often reach back to the source which opens possibilities for new projects and collaborations. This is what keeps innovators going.
I am sorry to see there are some efforts in academia, open science, and OER that have been inspired by, and draw from my work with Book Sprints but do not credit the source.
This lack of generosity doesn’t make a whole lot of sense to me.