Rangefinders. That is all.
If this is optional I dont have any objections to it.
However, using a third party add on to get this effect would be against the user agreement.
The reason is that the add-on would give you an unfair advantage and Anet decided that this is undesirable. As an option in the game it would be different cause everyone has access to such an option.
So dont use these kind of add ons, but do support this suggestion if you want this
Arise, ye farmers of all nations
Arise, opressed of Tyria!
Arise, opressed of Tyria!
I don’t use those kind of add-ons, actually. I just would rather not have to consider grabbing one when all it would be for is a readout of how far I am from my target that’s a little more responsive/accurate than ‘Is the bar red?’
And yes, I would hope it to be optional.