[goodcanadian]

I imagine that electronic records will suffer a similar fate as paper records. Many will survive and many won't. To respond to the grandparent, there are many more records, so you may be able to track some individuals with far greater level of detail, but the noise is also a lot higher. When googling my name, for example, I don't show up at all in the first several pages of results, so it may be a lot harder for a random researcher to sort through the data to learn about me if, for some reason, they wanted to.