One group who would benefit from detailed life style profiles are life insurance companies. More detail is better for setting accurate premiums while remaining competitive with other life insurance companies.
Edit: I almost forgot to mention a really popular one I've seen a lot of lately: "Have you ever had a DUI ? I'll wait." It's unbelievable to me that people would answer this question, but it definitely something insurance companies would like to know because their records don't go that far back into the paper age. A lot of people answer something like "No, but I should have."