I think the biggest reason for whine is the combination of:
a skill based game,
that also has character stats,
paired with a rather persistant environment.
When you get whacked in a normal MMO where it's about clicking hotkeys and letting the char do the rest, it's easier to calculate why it happened. People can really figure out if that was happend was unbalanced or not.
In here, you get whacked, and now you don't know what to blame:
your own lack of skill how totally skilled the opponent was,
the ping,
the recent change in weapon stats that gave his weapon +1 damage,
the recent change in armor stats that gave your armor -1 defense,
a random factor?
It could be all, some or something totally different. Which makes it complicated. And because of the persistancy, you cant just say "hey, i'll just see and give it a try from the other side" in an instant.
If that is a desired effect or not is subject of a long discussion, I guess. I personally like it, because it means less game-calculating(excel sheets) and more game-feeling for players. I want people to
know that weapon xyz will smash some heads, without being able to actually say
why. Feeling. I'm still lobbying to hide the item stats altogether and replace them with a generic "low/medium/high"
Don't worry, I guess I'm alone on this part
And then it's probably also what was said many pages ago - that you can actually communicate with us, so it might actually have impact. Need to think about that
.