Well, no. I guess there's some error in the system, and that the original question might be about the same I experienced.
A few days ago my statistics page started to claim that I had hidden it from others. Which I certainly didn't - I hadn't even authenticated project-gc so I wasn't even able to do.
I just signed up to fix this, and found that in my profile the box is unchecked, while the statistics page still says it's hidden from others (and wrongly claims it was me who did it). I also tried to hide and unhide them again, which seemed to do nothing.