[mirker]

It’s the same thing but more time consuming.

If you knew this was happening, you’d create N accounts, match with the same person, and average queries over account pairs.

Also, if the error is constrained to be the same, then the attack is reduced to estimating the radius of a circle where you are given points on the perimeter, which you should be able to do in very few queries (3?). I haven’t worked out the triangulation math but you’d basically solve for x^2+y^2=r^2.