I always prioritize dps than tanks in pre 50 dungeons cuz any class with decent synced hp/gear can tank all mobs/ bosses.
If tanks start telling me how to play my job while not playing his i'll gladly disregard anything he says as i ran once with a tank who didn't use any defence/ hp buff skills till the last boss in tam.
But what got me was when he said can you not dps and use fluid aura.
I was like speechless, a tank telling me how to play yet he's not even playing his class right.
I trolled him a few times by using medica once and easily ripping hate lol.
On the last boss i let him die and made him rage on about how the group was going to wipe.
As if! He got pissed at the end when we beat it and said
" learn to play your job and in a party "
I was like lol naw just chill