@Kakiko -- I appreciate the full response and the clarification. But I will say that the argument still holds as somewhat valid; if you aren't ashamed of your logs, why hide them at all? Here's why I think that:
Any person worth their salt who goes through logs will easily separate poor play from shoddy circumstances. I will use my V3S clear as an example--my overall DPS was abysmal, but I died three times. I was clipped twice by two people's Folio's (neither were my fault--one was the other BRD who ran into my same Library tile I had already been standing in, and did not move to adjust so I tried to scramble the last minute and couldn't make it; second was a tank and they actually ended up killing my friend on SAM, too later on--no big deal, we had a laugh about that one), and the third death was me screwing up Mindjack reapers because I got greedy (and because I will openly admit that I am awful at that mechanic). The comp also did not have a DRG, so as a BRD, I lose 300-400 DPS right there (it was actually double BRD, SAM, and I think NIN was the other DPS; maybe RDM, I would have to double-check). Anyone looking at that grey would see "Well, 3 deaths, two were clips from Folio, one they messed up, no DRG, definitely doesn't have anywhere near BiS for BRD, so that's why their damage was low". It wasn't even 3k.
Same thing for poor performers. I once had a MNK who used the following rotation: Dragon Kick > Twin Snakes > Rockbreaker. Every time. In V2S. And it was a farm group. Someone analyzing those logs can see: "Well, their damage is awful because they are using an AOE rotation on a single target and ignoring their other skills". Analysis of logs is key, and I say this the anyone who says people judge based off of just the percentile alone--there's more to it than just that ranking. Hence why you dig deeper. You can't do that if someone hides them; and when people do that, everyone automatically assumes they have something to hide, so it doesn't work out in their favor, in the end.
More research can also be done, such as looking at a player's gear. That's why I said OP should be pulling more than 3,500-4,000 DPS on a MCH. Because their MCH is 340--may not be BiS because no Genji body or Genji weapon, but the secondaries aren't weighed as much right now to cause a 1,000 DPS discrepancy.
Bottom line (because I feel like I'm rambling) is people have to dig deeper into those runs to see WHY damage was so low. Instead of just basing it off of a 19 median. Analyze the logs; look at the rotation, look at their gear, look at the comp (especially important for BRD/MCH because of their reliance on a DRG), and then make a judgement. However, I know that a lot of people don't dig deeper but take the number at face value.
As for the thread, it told both sides because of the log. If no one had the log to reference, we have just the OP's side, which blames the WAR for his supposed elitism, but mentions nothing about how the WAR was only being outDPS'd by a NIN who died once, and not a SAM, RDM, or MCH that also only died once (well, SAM died twice). It opens up for more discussion, because clearly there is room for improvement on the part of all three of those DPS. With no log, we only have that accursed WAR and their parser elitism.
But these are just my opinions.