So Path of Exile had hit a minor snag with its Delve league insofar as people were not happy about how quickly one could acquire Sulphite. To recap the last bit of player frustration, Sulphite is needed for a lot of things, but it could be rather difficult to get… which is pretty frustrating for players trying to farm it. The next patch increases the amount of Sulphite found, especially when players wind up in higher-level maps.
The tradeoff is that expeditions cost a bit more, which is meant to encourage players to challenge the hardest possible map rather than scaling backwards on the regular. Whether or not it’ll work out in practice remains to be seen, but it’s a nod to a persistent player issue. The game is also asking for crafty players to show off their crafting skills in a new contest, but that doesn’t really have balance issues as such.Source: Patch changes, Crafting contest