[etataetaet]

> this system forces you into over-committing to the course.

This is a good point! This is why I always say getting a 4.0 doesn't mean you understand the material more than the person with a 3.8 but means you put more time into the class. Getting 4.0's is less about understanding the material and more about jumping through the teachers hoops and doing everything you can to get every small bit of credit. I've spent ~2 hours to get a few extra points on one small assignment just because you cannot miss a single thing if you want a 4.0. Did that extra 2 hours give me a great understanding of the material proportional to the time spent? No, not at all!