Instructors try to help students to make good decisions. If you'll grant that coming to class _and_ studying alone is the best possible student strategy, then c

Instructors try to help students to make good decisions. If you'll grant that coming to class _and_ studying alone is the best possible student strategy, then class policies that encourage that are good. If you doubt that students need help to avoid poor choices, consider how common cheating is, and how much effort we put into making it less rewarding for them. It's a fact that if you put all the class notes online, some students will not come to class, thus you did not do them a favour.