Ron,
In most cases they do, but the article said that his name was on the birth certificate and that he gave the kid gifts and money. That does not make him an unknown donor.
The guy was also a donor for a friend of his -
The kid is now 18 though - I wonder why he has the right to get child support now...
Flip,
A couple of my best friends are 'dykes' - I would trust them before I would trust you.
Steve