Hoarder returned to what it once was
Right now hoarder is a completely useless perk for killers and was once the only solution against random key finding, I would say give it the ability to once again reduce items found in chests rarity to much smaller so that even with plunderers and luck increases it is only about a 15% chance to find anything higher than a rare.
Comments
The spaghetti code doesn't allow Hoarder to work like that, it was bugged on release and changed because it would always stay bugged.
If you want a really good laugh read the PTB patch notes for A Binding Of Kin. I liked the idea Hoarder used to be and thought a Santa Clown Build with it could be cute but I will never expect the perk to make any changes to item rarity, the code just won't allow it.