I "hide" private trees, no trees & tiny trees in the trash as soon as they arrive on my match list. Every week or two I have a look at the trash. It is easy to scroll down the list, arranged by date, to see if any trees have changed to a good sized, public tree. You can then click the little "inbox" icon (where the trash icon was) to return the match to the ordinary list of matches. My trash list is now has many more pages than my regular list.