Eh, I don't think it's
stupid it's just not going to
solve homelessness. I'll preface this by admitting that I'm not well-versed with the problem (other than what I see), so this could be off-base and I'll feel stupid for having written this.
Understanding the who/when/where of homelessness isn't stupid - Epidemiology is a well-respected field built around just that (for health and diseases, obviously). Certainly part of solving the problem is understanding the distribution of the problem.
Does anyone currently track that information with any appreciable amount of accuracy? If so, I could definitely see this as being pointless. If not, sounds like really useful information to know.
Obviously lots of questions and suspicion here makes sense, like why it's a private company and not an NGO, why they can't anonymously track this information, etc. but "tracking whereabouts" is also a feature of many epidemiological studies.