@LetBloodline
Those are exactly my thoughts, he kept telling people off about parsers and telling them how they are wannabes and how they will never reach his greatness while backing his words up with empty claims of his godlyness in other MMOS he has played in which he has never used a parser.
In my eyes this is nothing but ignorance, he would never know how well he'd perform or whether he is pulling his weight or just doing barely acceptable damage at best.

People don't kick DPS who don't pull their weight left and right without reason, if they perform moderately it's already enough to keep them.
The ones that are getting kicked are mostly not only underperforming but the ones that "bark", underperform and take unnecessary damage at least that is what I do, I don't expect greatness aslong as someone understands his class, role and abilities it's fine.
But when I see a Melee only at the rear of the enemy or only the flank I already know they obviously underperform.
If a BLM is only casting Ice spells, you know he is underperforming.

You don't need a parser for that to know it, so much is true BUT that's exactly what makes the parser necessary, most underperformers don't even know they suck.
You don't have numbers to prove, that their way is the wrong one so they go on the defense, now you have a person with ill feelings towards you because YOU dare to tell them they could perform better!
The same person will go to the forums and call off "Elitists" for using parsers, telling how they are bad for the community and should be banned!
If said person would see his own numbers he would actually know the difference and eventually seek guidance from the person outperforming him by a mile with same or lesser gear. (i.e. 180 vs 320 for example)
We don't want a parser to show everyone how great we are, far from it. We want it so that others can actually improve and seek guidance from more experienced players with numbers to back it up.
Of course there are elitist jerks but there are just as many if not more ignorant jerks who have never used a parser and just say it's the devil and witchcraft and everyone that uses one should be burned on a stake or drowned!