@Nedkel: as someone that played WoW for 10 years w/o any DPS parser related issues (barring my poor Core2Duo being overtaxed by recount way back when

) I tend to disagree. Then again, my experience running random raids are severely limited, b/c I can't be arsed to progress the same boss with a different troupe each week, so take that into account.
I have never been dissed b/c of my performance in dungeons or LFR (barring herp-a-derping due to brainlag but you don't need a parser for that^^).
Normal mode / dungeons do not have enrages, so parsers are only there for funsies. people fussing over crappy DPS in freelot content are ... well... chuckle worthy. To put it politely.