Just because I don't see a use case doesn't mean I'm unilaterally stating a use case doesn't exist. I'm simply stating my opinion as to why this device doesn't

Just because I don't see a use case doesn't mean I'm unilaterally stating a use case doesn't exist. I'm simply stating my opinion as to why this device doesn't suit me; to be more precise I'm stating why somebody else's use case is not my use case. Why do you assume my comment is supposed to generalize to everybody's use cases?