About the community of the game; not always but sometimes

First of all im not trying to offend someone, it's just only that i found so many people rude on dungeons and trials that make me sad.
The thing it's why people love to say use "LB" in my experience i found it annoying, i'm no telling others how to play as tank or as healer, why they told me use lb. Many times i found people who losses agroo or leave the tank die as healer but they feel with the right of saying use lb even when the others dps are death they told you what to do, like oh im death but im yelling you what to do even if i failed. More sad seeing new players and with "light farm" they just ran away to the boss and doesn't care if the new don't know the fight, thats why exist "PF" like i said it's kinda sad seeing more frecuently this kind of people.
I mean i just want to play and enjoy the game but when you found this kind of people that insults you even if it's them fault or they just are annoying telling you, you´re a bitch "hurr durr"

I know i don't need to care of what others say to me but it's kinda crappy found them more and more frecuently when you only want to fun in the game.
Again not trying to offend someone but just letting know it's kinda hard have fun with more and more mechanics on the game broken when more of the people only care for themselves.

They're probably telling you to use LB when you are in a boss fight and its just about dead. As a DPS your LB seems to be the most useful for dungeons. As I tank I think I used LB twice in my entire time playing. As for the people, yeah it can be tough, people can be donkey's. I've had my fair share as a tank, but I don't let them get to me, most of th time I just ignore them, get the duty done and maybe the next group will be a decent one.

When I tank I say lb as newish dps are unsure if they should do it or not and then no one ends up using it and it goes to waste. Im not giving orders, im just informing them that they can use it.

As for light farm, people shouldn't be doing that in duty finder, if your talking about joining a light farming party in party finder and they rush in without explaining anything, they shouldnt have to since its a farming party, everyone should already know what to do.

I think calling for LB is very normal. Everytime I raid, our raid leader call out everything including LB (which I did a million times and he still called out). At the end he said, it was just a routine call - no offense. Also, calling out LB can remind others to look around for example - we ran Shiva ex and our melee died. Tank call out LB - but nobody did LB - we forgot the Melee DIED - mage LB right away . I wouldn't take the LB thing too serious and personal. Sometimes just a routine call. Plus a lot of DPS forget and sometimes Tank call out cause they know when the big attack coming or when they will move the Boss - they probably are the best to judge when LB should go out.

A lot of times - if you are new to the dungeon, just tell people Hey i am new - be gentle. They would say follow this person or do this and do that.

I don't know if my point about the "LB" it's not clear in this point but i'll make sure to put it.
People say lb to dps caster or melee in the worst moment, they don't care if the dps dies they only want to end it, not trying to offend again but supposedly where "a team" but the dps don't matters in the group if dies or not, sad the tanks and healers say so many times oh dismiss the dps easy replace them and they feel so arrogant with that kind of comments. (Again not trying to offend but if they said oh it's good to say it, then why demand it?)

The real problem is when people is telling lb in the worst moment for dps, if the dps don't use it in that moment people start insult them and just they kick them.
Now talking about new people in DF nobody cares about explain the mechanics to newbies, only say "at least have you watched a video?" if newbie say no then the pt just kicked them.
PD: sorry for my gramma