Oh, man, another missed opportunity to make the average Joe Six-Pack become aware of data aggregation and privacy violations. If the researcher had downloaded the 2TB of data and published it as a torrent, then laymen might care. When someone can query the list and see his own personal information being broadcast, they will understand. When they realize that anyone can look up the address, phone, and all sorts of oth…
That’s career suicide and it likely would come with let’s make an example out of you sentencing (depending where lived).
An argument could be made that every step above was illegal. I don't agree with that argument, but surely you've heard of (many) cases where people have been prosecuted for things like that.
My point is that he's already taking risks.