Me 10 years ago: probably would have played along with the profile picture aging meme going around on Facebook and Instagram
Me now: ponders how all this data could be mined to train facial recognition algorithms on age progression and age recognition Most common rebuttal in my mentions: "That data is already available. Facebook's already got all the profile pictures."
Of course. And I'm not trying to say this is a crisis or that it's inherently dangerous. But just for fun, let's play this out.