Does anyone use the IEEE software development standards?

By this I'm referring to such things as the IEEE 730 ( https://standards.ieee.org/ieee/730/5284/ ), the IEEE 1028 ( https://standards.ieee.org/ieee/1028/1501/ ), and so on and so forth.

I came across these first about a year ago, but I have virtually never heard them spoken about here on Hacker News, and I guess I'm just wondering who is actually writing documents in these kinds of standards and why. Is it just a regulatory thing? Are they secret collections of decades of well-integrated best practices, hiding in plain sight? Maybe something in between those two extremes? I'd love to hear more from people who have done these kinds of things before.