Yeah, I saw it the other day. I would bet a lot of money that the information was already stored. In fact, if their data group didn’t already store that information (link clicks to external websites) they should all be fired. This is just a way that you can find something that you’d previously looked at on facebook (which, oddly, may be the only site on the planet with a worse search function than reddit).
Humans are so massively susceptible to gamification. It’s nice for providing motivation, but it ends up being like an addiction the way companies leverage it.