Comment by ghaff

A lot of those aggregated records very quickly become a very precise public record. I'm not saying if it's good or bad but a lot of people on this site probably object to having their lives be essentially an open book which is very close to being the case as soon as a relatively small number of facts are opened up.

It's more the case when the addresses and birthdates of public figures, which are often a matter of public record, enter the picture but it's easier to find out information about a lot of people with a bit of data than most people realize if anyone really cares to investigate.