Comment by ggregoire

I imagine that text template renders could benefit. The general use case is any time you need to repeatedly splice (take slices, insert data in the middle etc) a text of significant length and performance is important. (I heard of this concept a long time ago, but rarely think about it.)

We use them pretty heavily in realtime collaborative editing libraries for text. Ie, text CRDTs. In diamond types, merging a branch into another branch requires (essentially) replaying a whole lot of edit operations. Using a rope makes that fast.