You all know I'm interested in copyright and its limitations.
Every semester I end up asking students if I can use their papers, essays, or assignments as an example for my future classes. Almost every time, they agree wholeheartedly but choose to be anonymous.
I think it's interesting that they are more interested in contributing to the common good (and in the affirmation of their work that it entails) than they are in getting credit for it. This also means that no one has to feel singled out or embarrassed. Ideally, at least.
The primary motivation for creative work is to find readers for that creative work.