I wonder if the father --
-- will ever decide to look the kid up? Some men might do that, but the likelihood is lessened by the mother's bid for money. Too bad, that, but at least the guy knows a kid is out there, and he has the name. If he even remembers that gig seven years ago, I guess.
As the father of an adopted son who has never known his birth-father, well, it does leave a potential void. Depends on the child's particular psychology whether the unknown is a wound or an itchy spot.