I'm aware of the stats page- it's one of my favorite features!
I get finding out it's public could be distressing for some people, but it's not that big a deal- you can make your account private if you'd rather the information not be out there. Plus, it's just stats on your collection, not YOU- it's not like this alone is going to make you an easy target for thieves (and less face it, if you're a savvy enough thief to be getting that kind of technical- you're not gonna be planning a game heist.)
I enjoy looking at others wheels from time to time, just to see how their collections differ from mine. I've found I've got a sort of weird 'taster' collection thing going on, where I have a lot of systems but overall not many games for any specific one. Makes for a very colorful wheel, to the point that it's hard to read. It's fun to click into other collections that, at first glance, seem 'simpler' than mine, but realize it's becuase they're going much deeper into the library for a smaller number of systems. It's interesting to see which ones other people favor.