[metrix]

I use it frequently too, but there's some terrible edge cases: https://stackoverflow.com/questions/53648244/specifying-the-...

[whimsicalism]

? I don't think these are issues with Yaml 1.2, the spec since 2009.

[eptcyka]

What about `thing: 1.0` and `thing: 1.0.0`?

Parser implementations have also been buggy. The ruby one in particular being a source of RCE's. Of course, these are implementation issues, but surely a simpler specofication would be easier to implement. And the current specification is anything but simple, clocking 84 pages in the PDF flavour.