I never did but you can expect people like Tiggy, and others I have on ignore, to go to such extremes to try and make their point.
I know people like making sob stories about how 1 run affected them. Yet all I see is a 1 run sob story. Which you may probably never be partnered with that person ever again through DF.
Back when people would do AK in greens since DL wasn't handed out like candy and players would die to Demon Wall's knockback. I went through many wipes and many unsuccessful clears. Eventually the few times I got passed Demon Wall was because tanks were decent enough and could adjust to a situation after the bee phase. Most of my early clears were based on me and a paladin who would alternate tanking, healing, and dpsing which was a slow but sure kill or it was a geared Warrior that could solo tank without the need of a healer past the bee phase on his own. After that I had to take care of the adds from the lass boss by myself and have the other DPS focus on dpsing and not getting hit by imminent catastrophe and getting the tanks to Anatoboga near the statue so they just tank and spank. It was harder to get tanks to tank Anatoboga than it was getting DPSers to not die to Imminent Catastrophe. For the most part because tanks knew it wasn't a simple fight due to mechanics they would ask for advice where to tank, in which I had to stand where they should and act as a visual marker, since there was no way marks then, and hope to move away before getting hit by Anatoboga's frontal cone abilities.
Case in point, I pulled my weight and then some. If we couldn't down it then I just accepted that we couldn't and it was better for them to get the experience and get used to the fight then trying to force constant change in strategem that wasn't gonna work if they didn't experience and became self aware of the mechanics. If players wanted advice I tried my best to explain the mechanics and what they should do or some others will. Yet for the most part it was never helpful when someone during those times would rage at people, especially when the person wasn't any better and then leave just leaving nothing but negativism through all that induced drama.
Same with Titan HM, I went around 3 months without getting the cleared because for the most part the groups I got through DF weren't gonna down it and it was hilarious seeing some groups fall apart simply because there was someone new or someone that didn't get past hearth phase. Once the FC I joined wanted to actively do primals it was on average 6 decent players carrying the other 2 while it was more work for the 6 players it was never a sob story.
Currently even now I handle Diabolos doors by myself in Lost City. If someone wants to try I let them. If we wipe then whatever the boss isn't going anywhere. If we down him then great there's 1 more person that can do it and that's a good thing. Yet I don't go making it a sob story because I have to do extra work and lose out on my DPS.
When I was farming my animus I didn't go and make new tanks life impossible when I got Satasha or Tam-Tara simply because they couldn't deal with the enmity dealt from Fire I crit. In fact I found use for css ruin, which I found to be hilarious, and made the new tanks job less stressful instead of being an elitist jerk and telling him he should try and force the notion of a rotation on him. I have no reason to start a players day with stress or end it with stress just to gratify my selfish needs for a piece of gear.