To let players feel safe from PKers in questing games (especially Hardcore) all Blizzard has to do allow an "Accept Hostility" button or something similar.
For Example:
Player
A and
B are questing at level 10. Player
C who is level 80 joins the game and immediately hostiles Player
A, as soon as this happens Player
A has to choice to either: "Accept Hostility" from Player
C or: "Deny Hostility" from Player
C. If Player
A is too busy to respond right away, the Hostility is automatically denied, and Player
C is unable to attack Player
A whatsoever until he accepts the hostility.
This way, even without adding a level restriction to your games, there's no way you can be killed without allowing it to happen. So for Hardcore-only players, this lets them be safe in public games with friends without having to worry about PKers ruining the fun.
Feel free to add any suggestions or comments.
