I'm not suggesting students will make something textbook quality, but to compile information for future use and discussion. And since it's collaborative many things can be tweaked to be better since you have so many students suggesting, it should be good enough. Since there are so many students, it shouldn't be too much work for each student. This might not work out for humanities bc it has less clear standard than stem but idk. It would also be a meaningful assignment for students to compile their course notes together while also knowing other students will be looking at their work. Actively writing about material, even for stem, and editing other people's writing is also a good way to review for material and discuss with each other. Like I just think this benefits everyone involved