Tanks need to position themselves, so BLM can AOE properly.
Tanks need to stand still, so melees can hit mobs/do positionals.
Tanks shouldn't pull more than they can handle, in terms of keeping aggro, and staying alive.
Tanks tend to believe they are invincible, just cause they got high ilv...you're not, so use defensive buffs, instead of blaming healers, when you die.
WHM who use fluid, are annoying as hell, for melees.
Melees need to swap targets, if they are close to overaggro tank.
BLM need to let tanks get aggro, before Flare'ing away.
Fairies don't care about tanks, unless they are close...so SCH should micro manage fairy, or stand closer to tanks.
if you're nin, and run out of TP, you can expect other melees did too, so goad them when you use invigorate.
if you got multiple melees, goad one early, so their TP stays high, then you can goad someone else, by the time their TP gets low.
and yah, i heal sometimes, and ppl being out of range, is annoying