There's a piece of software called TeX that has a very odd version number - it's heading towards pi, and each new version adds on a new digit.
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Of course I know that. Care to guess what I work on? Open source software!
Read again what I wrote. "No, 0.08 does NOT mean 8% complete." and "Often 1.0 is the first complete release version. But often it is not."
Spitting out an example that says some systems start at < 1 and work up to 1 for the release doesn't refute what I said. Not all devs do that; some say 1.0 is the first release and go up from there. There's no requirement to do things a certain way, other than the logical "if you use numbers, they should go up".