There’s a lot of bitching about being raided in a game made about raiding each other!
So I am 100% against this! It’s litterally part of the game!
Giving each player the option to permanently protect himself against 1 or maybe 2 players maybe a way to prevent bitching. And a good idea from a corporate point of view. (Keep the customer happy. Like Flare ever cared about us!)
So you might be on to something.
I’d make it just like the gold shield, it doesn’t prevent raiding just protects you. Same as raids during a war.