[atomicnumber3]

I find discussions like this ("html is/isn't a programming language" etc) kind of tiresome because eventually you end up at "a compiler is a file format converter". You have reached Truth but it ends up not being a terrifically interesting statement and everyone just kind of goes back to whatever they originally meant with whatever they said that started the argument.

[throwawaaarrgh]

Most people don't know that YAML is not a configuration format, because they never learned the difference between a configuration format and a data format. Once you know the difference, it's clear they are very different things, and when to use which, which leads to very different outcomes.

The more accurate people's words are, the clearer they can communicate their ideas. Better communication leads to better results.