While I think this project and the data are interesting, one thing that becomes problematic is that you actually DO have to invest time in whatever courses you register for at most colleges and universities (or at least the ones that I've seen).

Generally, if you aren't making adequate progress in a course, you can be dropped by the instructor mid-semester/quarter or placed on academic probation, both of which can cause you to fall below the minimum number of credits needed to be eligible for healthcare coverage.

So while you may save some money on health insurance, you lose a potentially large amount of time due to having to keep up with coursework to maintain eligibility.

That being said, this may not be a problem if they are courses you are actually interested in and can dedicate time to completing.