I'd guess that the next of kin aren't reading this, as they have so much more to attend to.
I think you're wrong. With no positive confirmation (ie. a body) that their loved one is dead there's surprisingly little the next of kin can do other than sit around, talk, and weep. And try to find out what might have gone wrong.
There are several examples of crashes where the next of kin not just stumbled upon this little website of ours, but actually participated in the discussion as well.