I'm obviously a dick because I already sent automated messages to relatives of people in the hack indicating to them that they were potentially cheated on.
Personally I would want to know so I share that information.
That is going a bit too far - the same thing could happen if somebody told him because they saw the wife having sex in a cheap motel, or found out for any other reason, would you still think they were guilty then?
Well, funny you should say that, because in the Aaron Schwartz case, many, many comments here on HN claimed exactly that, that the judge, prosecutor, DA were all directly responsible for his suicide.
We have an actual agreement on this, me and my wife: try not to cheat, but if it happens, do everything to keep the other from knowing.
What you don't know can't hurt you -- or at least that's the basis for our arrangement for monogamy between fallible humans. I've heard many arguments for and against it -- the point is that it's OUR arrangement, and YOU have nothing to do with it.
The database contains full addresses, names. You can easily find who is cohabiting with them fairly reliably (near 100% if they live in a house) through a variety of services which list that information.
All I can say is there's going to be a hell of a lot of blackmail. I'm sure there's already a group on IRC organizing blackmail. There's a lot of targets and it's very information rich.