This is a terrible and easily abused policy. Are you going to maintain a giant opt-out list? What about people who don't monitor Fanlore and don't know about this? Anything like this should be opt-in, not opt-out.

Better: all fan faces must be blurred/covered unless the fan has publicly posted somewhere that showing their face is acceptable. It'll be easy for you to check if a photo is in compliance with the policy, and people can still choose to be visible if they want to (by posting publicly about it). Then you'd only have to maintain a list of people who changed their minds later and no longer wanted to be shown, which would be a much smaller list.