The problem with farming in PoE2

The predominance of farming for generic currency, especially with IIR for divines and the like, make it so that any targetted farming is subpar.

It's so far above anything else that things like farming specific mechanics end up relegated to addendums to currency farm, and this means that there's no reason for player A to farm mechanic X and then trade with player B who farmed mechanic Y. Because of this, several mechanics like expedition feel REALLY underwhelming.

Farming raw currency on cleansed maps with rarity doesn't have to go away, but it needs to not be good enough to trivialize things like essences, sanctum, soul cores, expedition, etc. Or at least you need to have a reason to give up on cleansed currency IIR farming to proritize other map mechanics if no one is farming them, to incentivice commerce.