I've kindly asked people not to run ahead of me when tanking. I had one person actually go along with it (after they got themselves wrecked). They wait til they get to the exit to post a little snide comment and lmao before exiting. Who's the real child here?
I try to make your life easier by taking the hits, you can return the favor by letting me do that.
I had another instance, where I wasn't the tank. I was bard and this sam wanted to pull ahead of the healer and tank, who were both new to the zone (Dead Ends). He got wrecked once and it didn't stop him. He even early pulled the final boss, but the tank decided to grab aggro before the buster. We had some mishaps on the first and last fights. I offered help when I spotted what was wrong. The sam decided to mouth off to them and got themself kicked. I offered my advice and we cleared on the next pull.
YPYT isn't little energy. It's just a more polite way of saying don't be a ****.