I disagree with this. I think that a 2 kill system would be much improved for several reasons. Allow me to explain the 2 kill system;
Your first death causes you to become injured; your stats are reduced by 85% and you cannot perform Jutsu. If you die in this state, you will become permanently dead. This lasts (X amount of time and then expires.)
If your debuff falls off, and you are killed again, then you are injured.
This system makes it so that people can be punished for their actions, but can still preserve their characters if they are careful. And if people are very persistent, they can find the person again and re-kill them for a permanent death.
An application based system removes involvement from the game and is inherently biased; you are leaving player actions in the hands of someone else, and that s never a good idea.
Furthermore, it removes immersion and contributes to OOC behavior, which is not ideal for a roleplay server.
I think the 2 death system is the best system that has surfaced in previous iterations.