But if you find 3 people out of 4 that want to SR the dungeon, then the 4th player is the one that is off. It's the same situation, in DF there're no specific rules. And yeah, the argument of using the PF is flawed, because we can even say the same here "If you want a slow run, PF"; "If you want a SR, PF", "If you want a sac pulling run, PF", "If you want to watch CS, PF", etc. You will do whatever they want to do if they're majority. If you/they don't agree, they can kick you without being punished by the rules, because it goes against their "gameplay", as already stated. Granted, you're a tank, they are hard to find... but we're not entitled to make them do what we want. It's true that I perceive tanks as a leader, but one thing is being a leader and other thing is being a boss. You can't force people to do what you want.

On my experience, I finished my zodiac by mostly using DF, and almost EVERY run was a speedrun. No one complained. Ever. Following my own experience... Sometimes, when I see the tank is good, as a healer I pull more for him. I know I can heal through it. The DPS most of the time thank me about it. The tanks never complained. When I play tank, I ask the healer if he feels comfortable with big pulls, checking the DPS if they can manage it. If I play DPS, it's up to the tank and healer. I suggest it but I won't force them to do it.