So well... in recent months some changes have made and Warly, Wormwood were added to DST.
Part of their ability requires the "bone shards," where all the problem begins. Single DS has several stable, reasonable ways to obtain bone shards: through hunting fugalisk and break down its bones, in Hamlet, and hammering spoiled dogfish/swordfish corpse, in Shipwrecked. even though bone shards are not renewable in DS RoG, this is not a problem because you can bring more bone shards from other DLC worlds and doesn't require that much shards after making a few important clothes.
But DST doesn't have any other way to get more bone shards. The only way to obtain bone shards is repeat self-killing and reviving, which is inefficient and against the basic rule of this game : surviving. This hadn't been a big problem until Warly and Woormwood arrived. But their ability, bramble husk and Bone bouillon(Armor and food - which accompany constant demand for its materials), require a lot of bone shards in order to use them well. You should kill yourself repeatedly to get the ingredients of items which were intended to protect you from enemies or starving. I hope there will be new ways to get more bone shards not from player corpse added in the future.