After a long break, I just realised that you can now oneshot Halaster xD
An option for higher difficulty would certainly provide a new milestone and encourage players to obtain BiS. Albeit, people would expect better loot, however, if that is not feasible, perhaps we could get a higher % chance obtaining items/currency that are obtainable in other content, that would otherwise involve a tedious grind. There was a time when not understanding your class and the rotation was punishable.
The difficulty options was one of the common ideas touched upon in the CPD and it is, but, a very popular one in other MMO's as well. We do have a hardcore VoS.
What do others think about this? How difficult can a rotation of 10seconds before the Boss Phases be?