People are offering to pay for it because they understand that providing that feature would potentially cause lost revenue for Call of Duty, since (theoretically) players are buying skins so other players can see them.

I imagine there are a lot of potential solutions (I can think of a few at least) but Activision probably think the lowest risk is to do nothing.

Very nice, readable and aesthetically pleasing. I particularly like the mobile-width view.

In my opinion, it’s about both the databases and the hardware. Specifically if/when always-on cameras become socially acceptable to wear in public, then facial databases can be utilised.

Presently, I don’t think it’s socially acceptable to always be pointing a phone’s camera at someone.

I recently discovered shadow tactics which has similar mechanics but with a samurai theme. Quite a cool game.

There is also the more recently released shadow gambit which has a pirate theme.