Tree Hint Issue

When working with Ancestry hints, do you look at the 'Member Tree' hints, or do you just ignore them? I look at them and often accept them without adding information to my tree. This creates a connection to other researchers that I can go back to.

While working with a non-ancestor, Rev. James Crawford (1752-1803), the suggested member trees really puzzled me. Many were trees for the James Crawford that married Rebecca Anderson. However, they also included the family information for the James Crawford that married Sarah VanSant

Other trees were for the James Crawford that married Rebecca Anderson. These trees included the wife and children of Rev. James Crawford.

Since I was getting photo and story hints for the correct James, I tried a search of public member trees for Rev. James Crawford to see if it pulled up trees for the correct James. This search did pull up some trees for other James, but it did find several trees for Rev. James Crawford.

The trees found by the search of public member trees should be the trees suggested as member tree hints. 

I have all of these James Crawford families in my Ancestry tree, Heartland Genealogy. I have attached source information to document their lives and to document that they are separate families. Thus, I don't understand why the hinting system is suggesting the wrong set of trees.