"I think everyone understand that instructors aren't concerned about copyrights." Well if you click on the "about" link on lectureleaks.com, you'll see that th

"I think everyone understand that instructors aren't concerned about copyrights." Well if you click on the "about" link on lectureleaks.com, you'll see that they only talk about copyrights. They do not seem to care about anything else... Incidentally, they have quite a lengthy copyright and license notice themselves... Maybe I should write one for my course. "Are there any known instances of a lecture recording being used against an instructor unfairly?" If you asked me whether instructors were sometimes treated unfairly by students, administrators or politicians, I would say yes. Having access to recorded lectures just adds a new angle of attack. "I doubt doing things that could be construed as "out of line, incorrect, inappropriate, whatever" really improve your lectures in a significant and sustainable way." I was actually referring to some ill intentioned people who would turn a joke, a simple mistake you made, or a controversial topic you taught against you. For example, teaching evolution is a risky business in some US states.