As another adoptee, I guess I never really had any particular issues about it as an adult, except for some medical history forms on which I had to note that I didn't know the history (with few exceptions) as I was adopted.

I understand sealing adoption records; it's as much to protect the person who put the child up for adoption, as it is to protect the children themselves. If Jane Doe doesn't want it known that she had a child out of wedlock, then it shouldn't fall to anyone else to deny her anonymity, assuming she's even still alive. It's a tough subject either way.