See that's the thing. I don't think any of these actions are giving affinity. Only cultivating in willowbrook (for the single element). And in the harmonized settlement.
Viewing post in Cycle of the First Dawn comments
Honestly I never checked the wildnerness after realizing that harmonized provides a unified bonus. I'll just test the wilderness wandering and see if affinity increases.
Mono Outer: Doesn't not do it, or its very slow. Didn't see any gain in 500 years
Mono Inner: Wandering does not increase affinity. same as above
Dual Outer: Wandering does increase it but at horrible rates, harmonized settlement is superior.
Dual Inner : Marginally better than Outer
Mono Deep: Same Pace as Inner/Outer.
I agree with your wilderness findings, they are most definitely broken because I remember getting far better returns from wilderness for affinity gains. I also am not sure if this is because I'm band 17