The analytics are really useful for business accounts. We do actually have quite a use case for business accounts...if we can catch more audience.
A business that chooses to work on here could invest heavily and upvote users that talk about them, as well as hopefully do a bit of curation. Analytics would go a long way in showing them how their advertising and engagement was working out.
Currently you would probably have to do a custom programmed system to track what users were talking about.
Could be very useful.
Might also just help seeing what your stats are and such. Of course, might be utterly depressing if you're getting shit for engagement and it turns out tons are reading your posts.