re the idea of shutting down our public trees, I think DPotts57 is probably right, it wouldn't have much impact, but I think the idea does show the frustration that people are having with having private trees get access to their DNA match public trees, but no sharing back. This issue is posted over and over here, on other sites, on the facebook page etc and hopefully it will draw some attention re a solution (that won't mean opening up private trees, but maybe at least generate surname list that only DNA matches can see.) I wonder when ancestry.com makes raw data available whether they will have a tool like FTDNA that allows you to compare and triangulate matches based only on chrome (i.e. doesn't matter if you have a private or no tree, you can see where on the 23 chromes you match and can compare to other matches to figure out trees). That might help with the problem...until then, keep complaining about the private tree DNA match issue and sending feedback!!!