I'm not sure I follow you here. When a friend shares an article, for example, the article comes as the owner put it on the web- page, author, etc. When I share that article, I say something like "h/t to kbutler for the find" That give credit in my circle to the person in my circle who found it. It's just a courtesy.
> When I see something that my friend has found on facebook and I share it, I always acknowledge them for finding it.
That's suggesting Intel should say, "We're using Minix in our chips - h/t Joe Random who posted about it on Facebook"
The courtesy they owe is to Andrew S. Tanenbaum, the /creator/ of the work they are using, not to some individual who happened to blog about it.