Recount is okay for some basic information, but it has limitations. Ever noticed that on the same fight different people's recounts will show different values (even when configured the same)? Or, that a disc priest's shields do not show up in the healing done section?
First, remember that the Recount you run yourself is the most accurate on yourself. Ex: if you are melee and in the think of things with the tanks and other melee your recount and there's is very close, but not exact. If you compare it to a ranged dps recount there can be a much bigger difference. It is humorous to me that at the start of a Naxx run and we start with the wonderful (sarcasm) arachnid wing that when the first group of 10 (non elite) spiders are pulled everyone blows there CD's and someone goes, wow are dps is great this should be no problem. HA! as Stan said you may spike 10k, but if you can only do 1200 someone is going to complain about you. It won't be me as I try to assist others and give tips, but someone will QQ. Just warning you.
Second, healing, it is nice to see just how much you heal. since healers have a real role in groups on who/when/how they heal recount isn't the best thing for them. It is nice to see the numbers and figure out what fights you/your class excells at, but you can't look at it the same way you look at dps. As you plow through trash and smoke down bosses as long as people are staying alive and you don't have to blow that every imported combat rez until that one boss crit just comes a little too quick on the tank, then you are fine. Overhealing, well if people are dieing and you are running out of mana, then you need to look at how you are doing things, otherwise nothing wrong with "extra" life.
i think its probably best to have a trade off between damage done and dps, using recount and switching between the 2 can totally change the rankings, i would quite happily have a lower dps than a couple of other ppl if i was wasting them on overall damage.
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