I'm sure there's a use case that fits what you're describing, but I've never seen it. 100% of the time I've seen disappearing messages used in the wild, it's be

I'm sure there's a use case that fits what you're describing, but I've never seen it. 100% of the time I've seen disappearing messages used in the wild, it's been for the benefit of both parties--even if one is a bit more diligent than the other about it.