I think two markers are too complicated. I even think one marker and a radius is too complicated to understand what are the effects of it.
We could just have one circle (instead of a pin) show up on the map with a standard radius. And then you could adjust the radius of this circle below the map for privacy. The messaging shouldnt just say what its doing, but what it’s intended to do, like: “Adjust your privacy: other members will see a random location within the size of the circle”
This way, you couldn’t manually move a pin or circle around on the map. But I think there’s too many options right now: manually change the text of the address, move the searched address pin, change the radius. We should single out one additional option (after having searched for an address) that we think is the most important one for users to customize. And just communicate this one option clearly. To me, it would be “randomizing for privacy”.