Though the reward by participation is very good for DPS, it lacks with tanks and healers.

IE - I'm a healer, the tank just happens to be decked. Relic+1, AF2, Coil gear, and I have to do very little healing. Does this mean that since I did little participation that I should be kicked or receive less reward/tomes? I was there the whole time. I kept the tank(s) alive. Why should I be penalized for having a very good tank?

IE2 - I'm an Off-Tank. This dungeon has little to no fights that really need an OT. Again, I did my job, why should I be penalized? (I know you can get around this one by making your own group, just go with it for argument's sake and Duty Finder)

In view of abusing the Vote-To-Kick, in WoW you were unable to kick after the dungeon was completed. I came across little abuse of the VTK feature through the many years I played. I did, however, use it often to get rid of trolls, AFKers, and people who would join a group for the purpose of causing trouble.