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by simonrepp 2867 days ago
Well spotted, good question!

It's also been asked in another thread on HN, I'm quoting myself here: "eno has neither indentation nor closing tags of any sort, that means if you use a section to group some values, you need to start another section to end the previous one (no closing tags!), that's why there are fieldsets, which allow short groupings that automatically end with the next field/list/fieldset."

Hope this explains it :)