I keep reading the same excuses over and over as to why someone keeps their tree private, and how he/she is willing to open it up to anyone who asks. I say again, there is absolutely no reason not to have a tree attached to your dna results. You don't have to attach your private full working tree....it is a simple thing to construct and attach a barebones, stripped down tree with no documents, photos or other personal information. This barebones tree need only have names, dates, and locales to help matches in determining relationships.
People who keep their dna trees private may think that they are reasonable and accomodating when asked, but they should realize that most people DON'T ask, and like Dennis and me, simply toss the match into the trash. With multiple kits at multiple labs, I do not have time to chase people down and ask for permission to see their trees. I had thought that the purpose of submitting a dna kit was to connect with peope who might be a genetic cousin. Hiding your dna tree only wastes that money spent. And the people with private dna trees who think that since they can see my dna tree and thus don't need to let me see theirs, do not realize that I have other surnames that I am actively researching that are NOT in my tree, but who I know has connections of some sort to the people in my tree. These people who keep private dna trees are missing out on what might be crucial information for them. As Dennis pointed out above, "it's your loss" .