And the number of projects that I have seen follow them is fewer than the number of projects that just seem to wing it. Which is my point... perhaps this standard is superficial and unnecessary, and maybe we should discard it.
IETF/whoever can write whatever they want, I only care about what I actually encounter. That's "standardization"
edit- All those nice looking checkboxes depend on the individual implementation. It's a nice concept but how many projects have actually implemented it to the conventions about idempotency/etc shown?
edit2- who is for-GET anyway? A random github link doesn't have much more worth than a random Medium link