The title isn't accurate though. The article is mostly about using IEEE 754 to manage computational error, which is a pretty esoteric subject.
Most programmers spend precious little time using floating point and don't need to worry about computational error. Even among those who use it a great deal -- those doing numerical analysis -- computational error doesn't seem to be something they concern themselves with. My guess is that in most instances it's swamped by experimental error.
My thoughts on this article are:
1: It's certainly good that it's available online. It'd be better with a different title.
2: It's good that modern CPUs support IEEE 754 for the rare instance that people use it.
3: It's worth reading the first third or so of it, just to get an idea of what computational error is
4: The most important thing the "typical" programmer needs to know is that dollar values shouldn't be represented in floating point. Ideally they shouldn't be represented as integers either because the integer rounding truncates towards zero, which is not how an accountant would round.