Well these problems are handmade and seems to be intended. In the past we also need quite a lot of materials but we got way more dungeons to get our stuff, including gold.
With just one char you could do dungeons like awakend necro, lair of fronzen fang, asura, nexus, stattered masts, glomdross, desolate tomb, ebondrake liar, naryu foundry, naryu sanctum and not only got mats from the dynamic / daily quest but also with from the boss drop itself, which went to auction. So you either could get some money or bid on the mats.
Now with every new dungeon 2,3,4 older dungeons get materialdrops removed and gold reward nerved, making it useless to run.
Instead of nerving older content and remove mats, make them valuable again. Increase the boss HP add the mechanics again and let player do these dungeons again to get some mats. Ill guess most players would be thankfull for some variety instead of running the same 3,4 duungens over and over again.
This way you could make old content usefull again instead of just wasting space on the harddrive.
At the current state of the game you could remove every dungeon below starstone mine and no one would even notice.
Adding even more and new materials would just cause more mess with already extrem limited storage space. (Obsidian, Silver, Onyx and the new fragments / scales are just an example)
Add Material Chests to the Boss loot, when i do CC and see the loot i dont know if i should laugh or cry, thats redicolous, sometimes you have just i item, the new scale fragments.
No one realy need the Material chest for crafting guilds, but everyone need common mats for upgrades.
Making mats available at boss loot auctions would also increase the goldflow again
But why im typing ths wall of text? NC-Soft dont give a ❤ ❤ ❤ ❤ anyways, like they always did...