One of my drones mentioned that we've been deleteing your MyMaps contributions.
I want to say that we own your data. You give it to us. If we delete it, it's our problem. Or really my problem as Lord of Maps within Google. And, the Lord giveth and the Lord teketh awayeth. So give up with the whining already.
This time it wasn't intentionaly, but my point has been made - if it were intentional then there's nothing you can do about it. It's MyMaps you see... Mine. Uncle Ed's. Not yours. We'd frickin' name it YourMaps for clarity if it were yours. Sheesh.
We're finding out where they went... but since it's a logical and physical impossibility for us at Google to do wrong or lose... sorry, misplace... data... It must be some kind of extra-universe problem. A time warp or black hole or such. Since all the world's best physicists work on reception desks dotted around the 'plex we'll have it back to normal in no time.