so far though the majority of pro parsers seems to be wanting one in order for them to judge people, categorize and ostracize if needs be and not better the players as well as find a justification on why they failed or were so slow that they miss their favourite TV movie (yep heard this too..so no is not invented). In this game, the result is what matters, if you beat the boss you need to know nothing else, if you need to make sure you were*the best* or among *the best* then I feel sorry for you. The victory or failure is upon the whole group NOT just one or two, and no matter what the contribution is of each, each contributed to either of the failure or success. Being obnubilated by numbers is silly at best, you do know if you suck or not, I suck at being a BLM and I dont need a parser to tell me that I just can see it, in fact most players know their performance, what they dont know is HOW to better those not if they do well or not that is pretty much visible, and a parser is useless since they already know they suck, the only use it would have is to give others one more motive to demean players that are not up to THEIR standards (you know this true so dont tell me is not), you want players to be like you want them to be forgetting that players are person with each their own weaknesses, strenght to deal with, technical, physical, psychological, and those a parser cant tell you how they feel when they play with others or do a dungeon or what not.
Again if you want a parser, you have a plethora of those available use one, stay silent about it and group with like minded and just analyze your heart out..but leave the rest, those that dont want that stuff, in peace and move at their own pace.
The result is what matters, the group result, whaft does it matter if someone was just there to be carried ? you were there to beat the boss you did ...so move on and if you fail...well chances are you wont meet any of those ever again so ..move on. If you consider you lost your time, then chances are you shouldnt use DF to begin with and build your own static group'/PF party with your friends and those you have chosent, this way you wont have any of such problem, YET again, even among those there are days one is not putting all his efforts into the game and keep progression lower only you dont say anything right ? is your friend afterall so you forgive right ?