I've been playing an Energy Melee Brute since release, and also played one in beta. Something that has always really confused and annoyed me is the fact that when stunned, a large number of enemies suddenly gain extraordinary movement powers, which they then use to flee your presence with alarming speed.
Particularly guilty of this are enemies with inherent flying abilities, such as Goldbrickers, Wyvren Wing Talons, CoT ghosts, and Arachnos Mu units. All of these have an obnoxious tendancy to fly STRAIGHT UP at around 50 MPH when stunned, preventing me from attacking them at all. Often, since most of these are ranged attackers, they just stay up there, and I'm forced to run around a corner or under an overhang so that they don't just sit up there taking potshots at me.
All of this leads me to wonder, why am I being punished for having a side effect on all of my attacks? Isn't stun supposed to be useful to me?