[hnthrow0287345]

>What kind of 'useful'?

Someone says it's useful to them. If you get a consensus where >50% find it useful, then it's probably useful.

[nilirl]

Ok, that's empirically useful by argument of popularity.

By that same measure: correctness, maintainability, and efficiency are not that useful.

I wasn't saying usefulness is not important, I'm saying this post conveniently crammed the hardest problem of writing software into a fuzzy adjective.