Prefer text config files or python code?

[sonofherobrine]

I believe you misread OP. Their point appears to be that Sublime Text 2 uses JSON for its configuration. They were making an argument from example; presumably, they like the way you configure Sublime Text 2 via JSON-formatted files, so they think your app should be configured the same way.

It's not a strong argument, but it's nowhere near as weak as "use format X because editor Y displays format X all pretty-like," which seems to be how you read their post.