@sevignes@mas.to
Yes, adding specialized information is just one example of a use case.
Or, related to a specific example today, if I had a bunch of followers from my hometown, and someone else posted a joke that would be *extra* funny to us but not to the poster, then I would QT the joke with the added line, "Sounds like Blah Blah's Restaurant, right?!" and tag friends.
Without QT there's no good way to amplify the joke like that. Either the line is disconnected from the joke--clicking through the link ruins the pacing--or I'm replying to someone with something their followers wouldn't get.
QT enables many such positive use cases, empowering expression.