I don't agree.   

I've put together my Family Tree with help from lots of members of the family, one cousin gave my maternal grandmother's side complete.  It saved me heaps of time.  I also had lots of help from kind people on this forum.  Following your logic, I would have to ask 100's of people for permission before publishing.  What if one of them said "no"?
I have done heaps of personal research, paid for lots of certificates too, half is my hard work, the other half is the hard work of others that I very much appreciate.  
However I came about the information about "MY" family tree .......... research, gift, shared, paid for, located on the Internet, my family tree belongs to me.
Well that's what I think, Kevin