Hi Kickdeechick
It really depends on whether it was an adoption through foster care, or a relinquishment adoption. In foster care (where NanaNina is coming from) it's not as common to have an open adoption, because of the fact that the child was taken away and it's not always safe to have it. With relinquishment adoptions, open is the preferred way and well established, with research to back it up
Open adoptions can be very open and very succesful with relinquished babies. I have seen plenty of families in America have wonderful relationships with the first families of the children. Being good friends, texting all the time, sending presents, attending each others family events etc. I know one amum who was very comforted when her daughters bmum texted her to think of her when they were going through a faliled adoption. And another bmum wondering what to wear to her son's first brithday party, where she would be meeting all the extended relatives etc etc
Thing is, an open adoption has to be handled completely differently depending on how the adoption came about. My DD2 and DS have an open adoption, and it clearly does benefit them a lot. But there are certain safeguards in place because it's an adoption from care
Now, I don't know whether this baby boy was relinquished or not. If he was, it's a shame that the bp's don't want to be in touch. I don't think however it will cause major problems. When people talk about closed adoption being bad, they usually mean the old 60's kind where absolutely nothing was known about the bp's at all, and adoption was kept hush hush. Nowadays, even in a closed adoption, usually the child will have some information about who their bp's are, which is helpful.
Research has taken place on relinquished children in open and closed adoptions. It found that the kids in closed adoptions weren't disadvantaged by that. They were happy, normal children. It did find that the kids in open adoptions were very secure and happy, and felt very glad to know their birth families. But there wasn't a huge difference between the two groups of children
Maybe for this baby boy, he will feel hurt not to know them, or hurt that they were the ones who refused to know his new family. It is sad, but I don't think it will have a huge impact. Thing is, you can never tell with anything how it will turn out. Try not to worry too much, because you can't do anything