I like YAML. It's ok if you don't. It's ok that I do. Want to use TOML? Awesome. Want to use JSON? Go for it. I prefer YAML, it works for me and I'll keep using it until something better comes along that I like.
Preference is preference. Stop acting like it's not. This page might have been "Nobody wants to use VI" or "Nobody wants to use Emacs" or "Nobody wants to use [insert thing I hate here]"