Edit: after reading JoeAltmaier and thinking more about it, its a terrible idea. You cant change it, its easy to dupe. No. Just no. Ill leave my original post

Edit: after reading JoeAltmaier and thinking more about it, its a terrible idea. You cant change it, its easy to dupe. No. Just no. Ill leave my original post though. :-) Id argue its more or less the same as a pin. Both could be gotten past with a determined attacker or a generic setup(camera for pin/selfie). Infact id say easier for certain people who post selfies on public sites, ripm. Cut and paste on x background. The more i think about it, the stupider the idea sounds.