Adoption Annulment

I was reading a recently posted article about Adoption Annulment, (as opposed to Adoption Disruption), as it relates to the case of Winnie Faye Higginbotham Yarber .

In the article, "Judge approves annullment of man's adoption", the abused adoptee was able to get a judge ordered change made to his birth certificate.

In the above mentioned case, the adoptee was sold through a baby broker, therefore I'm guessing the Judge who ruled in favor of the adoptee thought the adoption was an illegal one, so the man had every right to have his biological mother's name put back on his birth certificate.  However, I have read in adoption forums other abused adoptees are seeking annulment, too.  Some see adoption as a contract, (like a marriage), and feel like an adoption can be made null and void, if a judge so decides for them. 

I'm not familiar with adoption annulments, and the only how-to web page I found was within Lori Carangelo's website:  http://www.amfor.net/stop.html

I myself thought the only way I could remove myself from my adopted last name was through a legal name change (marriage). 

The paper-work  for me was overwhelming (for marriage), so I decided annulling an adoption was a moot point:  it was best to leave certain things alone. 

I personally see myself as an adult orphan -- one without any parents or extended family -- so re-adoption (by either of my birth parents) or annulment means very little to me.  However, I do see/understand how the angry abused adoptee would want the legal removal of the offending AP names from an altered ammended birth certificate.  Such an act can be liberating and empowering for the abused adoptee.

Does anyone else know much about adoption annulment and how this can hurt or benefit the life of the abused adoptee?