I guess my concern is that most recruiters aren't you, and probably aren't anyone commenting on this thread.
My bias is that mass-adoption (and ultimately, online learning as an alternative to a ~100k education) will only happen when an entry-level recruiter is able to filter through and use online courses as a hiring signal. So far, the only people I've seen get anywhere close to this, or care at all, are very technical founders hiring for a very small team, usually in the valley.
Even if they respect the course or what was learned, they don't actively seek these people out. I've seen startup founders aggressively seeking out and trying to hire Stanford / Harvard / Princeton alumni because they're alumni. Yet I've never heard anyone saying "Let's go recruit and hire CS184 grads".
... yet.