I'm probably unreasonably holding a (mild) grudge here, but every time I get a spam email from Wisconsin Engineering asking for donations (no matter how many times I mark these emails as "unsubscribe and report spam", they somehow manage to keep singing me up for more lists that evade Gmail's spam filter), I think about the year of my life they made me waste to fulfill a bunch of pointless requirements and don't really feel compelled to donate.
@danluu UIUC alumni does the same thing ignoring unsubscribes. Their math department would let you test out of ANY undergrad math class, which was great.
@danluu though iirc, it was like you didn't have to take the class, but it didn't count towards total number of credits, so you'd have to substitute a more advanced class. I think the professors preferred teaching more advanced classes, so it's win-win.