I would love for them to implement something like this. As a healer, it is usually left to me to clear the debuffs, and even into later content with level 60's many DPS or Tanks won't watch their own debuffs. I don't know if they don't realize I can't actually clear them every time, but inflicting various debuffs on them to help them learn how they affect them would possibly help me with all the raises i have to perform when they ignore Doom.