Mass,
My mistake and apologies. First, I assumed you had undone the entire block of changes, not just the three driveways, so sorry about that.  As far as the driveways, I did go back and review the wiki.openstreetmap.org help, and saw the explanation about tagging public and private driveways.  I had just assumed the driveways were artifacts from whatever created the original base map, and should be removed. The Deercreek neighborhood has about 700 homes, and only about 4 have these drive features added, so they seemed unusual.  But, as you’ve noted, I’m new and still learning the ropes.  Clearly, my goal is to improve the map, so thanks for your time to correct and explain my errors. Regards, -Bill 