Quote Originally Posted by Zojha View Post
4) And why can't you figure the basics out on your own? >_>

It's simple math. We have the potency of our spells and skills. All that's left is to do a rough estimate which skill usage gives you the most potency in a given situation. Things that are self-explanatory through this: Use combos; keep DoTs up; keep self-buff up; keep slash/pierce/blunt debuff up; hit positionals if possible; use long CD abilities; use AoE only when X or more targets are hit; make use of proccs; watch your ressources.

When exactly to pop blood for blood, that's something you'd want a parser for. Doing the math is a mess. But that's high level optimization, maybe necessary for savage, but hopefully nowhere else.
Yes, math that you have to do yourself. Or search for.
1) Parsers show you that you are doing stuff wrong and that you should look into more optimal rotations (the amount of icemages clearly shows that people do not know that they are doing it wrong).
2) Parsers allow you to not waste time calculating, as they do it for you.
3) Not everyone is created the same, some people might not be able to do an optimal rotation, and will lose DPS by trying to do it, instead of doing a simpler one that they can pull off perfectly.
4) Content is different! Some mechanics force downtime, or make you unable to weave in oGCD, or have phases of invincibility which makes DoTs less helpful, etc... Is it possible to have all this in your head? Yes, sure. Is everyone capable of doing it? Doubtful.