Instead of ranting about it, I decided to come up with a possible solution:
All classes (including the ones with healing) are given a "I NEED HEALING!" button that lights up when your character's health drops below a certain threshold (i.e. 40%). When you press the button, a big red flashing arrow appears above your head and can only be seen by players with healing skills within range. When your health is taken above the threshold, the arrow disappears.
Now before we go any further, the idea is to provide identification assistance to the healers and not be a constant pain in the ass. So to prevent players from annoying the hell out of healers, there would be a few rules:
- The button can only be pressed once for each drop below the threshold.
- Healers can turn off being able to see arrows. A small 'eye' icon next to their portrait will indicate if they have the function turned on or not.
- Healers gain additional renown for helping players that have activated their "I NEED HEALING!" button. This provides an incentive to respond.