This is not a problem with the parser, this is just a problem with someone who doesn't know how to read a parser.

Back when I had a static for second coil we were running into issues where one of our bards' dps was significantly lower than the others. Using a parser I was able to first off tell that there was a discrepancy but I was also able to look at the differences in their accuracy, crit rates, damage per hit, ability usage, we were able to tell of this was a problem due to gear or some foible in playstyle.

Because of my parser we were able to see what specifically was different and were able to fix the problem, once the bard knew specifically where he was going wrong he was able to put out nearly the same dps as the other bard.

Blaming douchebaggery on parsers won't stop people from being rude. This game fosters a lack of personal accountability both jn playstyle as well as in attitude. In the duty finder people are free to be as rude and obnoxious as they want because the chance that they will see anyone in that group ever again is extremely remote. Furthermore up until you get into raid tier content you can succeed without using optimal playstyles.

That and the internet in general seems to bring out the worst aspects of humanity.