@benswift did anything happen with this? I too am interested in the teaching use case of anonymous posting.
My model is that a group represents a class, and a per class forum is a category which only the group has access to. Within this I would like students to be able to post anonymously so that they feel emboldened to step up.
My current understanding is that students can choose to post anonymously but its the same “linked” anonymous user across the entire discourse. Did you guys make any progress on the plugin to approximate the piazza behavior?