Our goal was to design a simple DSL which is easy to read and make small edits to. Copying and pasting is a powerful learning method :)

We're also working on creating richer and more streamlined authoring experience in Pontoon, Mozilla's translation management system. You can read about the current state of Fluent support in Pontoon in my colleague's post at https://blog.mozilla.org/l10n/2019/04/11/implementing-fluent....