Others' Champions' Mastery Page visible

I stumbled upon this by accident but once you open the client for the first time... and if you right click View Profile of one of your friends... and then just click Find Summoner in the profile and hit enter to get back to yourself. Then click Champions, you can view others' Champions Pages.... Since it's greyed out normally, I'm unsure if you want this visible to others due to possible grieving. If you attempt to do it again after getting back to your true champions page, you can't do it again without rebooting the client.

Well, That is all..

Cheers, Seiferoth