I think you underestimate the dufosity of some people.
However, I am sure that anyone taking out a loan to buy real estate would have the decision made for him by his lienholder, in much the same way that lienholders decide that you shall carry insurance.
It sounds to me like the question is not: would such a registry be useful, but rather should such a registry be mandatory?
And another question–is such a registry so much a part-and-parcel of contracts enforcement that it’s actually the government’s role to do it?
If not, presumably, private entities can compete for the business.
Practical questions that would have to be worked out… what if there are (say) five different registries each with only 20 percent of the properties registered with them? That one is probably easy. You’d have to search them all to find the owner (if he wants to be public) or the owner could actually register with several of them. Certainly a seller can say, “I am registered with ACME Title Registry.”
A more difficult one: Lets say some scam artist starts a registry, collects a few legitimate registrations, waits a few years, then inserts some phony deed giving him ownership of the Empire State Building into the registry? Since there is no single recognized authoritative registry, his claim to it is just as good as the guy who has had a deed for it registered with another company for the last five years. (Variation–a wealthy scam artist buys a registry company with a good reputation and hijacks it for this purpose.) In any case I believe I have demonstrated that there can *easily* be conflicts between different registries, either innocent or mendacious.
I see enough difficulties here that I would be tempted to check the premise that this function is NOT so integrally a part of contract adjudication/enforcement that the government should be doing it.
BTW valid point about getting rid of “squatters’ rights”, also valid point: a registry ought to give an option for privacy, either by sealing the records until and unless the owner wants them unsealed, or actually issuing a bearer title (in which case the owner would assume the risk of its destruction, theft or loss).