We have some informaton for you concerning Dread Dolls. Firstly, it is better not to buy those dolls because they will be changed and you might loose a lot of money.
As Community Manager told me:
Step 1: of course that the doll won't spawn anymore.
Step 2: By tomorrow, the description of the doll will be changed, and it will receive a new name.
Step 3: with the next client patch the current dread doll will receive a new graphic, so it's not a dread doll anymore. With that same patch, the real dread doll will be added to the game as a new object again. At that point, nobody will have it.
Step 4: People who had received a dread doll beforehand can receive it again.
Step 5: The new doll that now was obtainable due to that bug, will be made obtainable ingame.