How do devs balance this game?

[Dreadkillz]

For these kind of games with competitive teamplays, I always wonder how devs come to making changes for gameplay balancing purposes.

How do you balance the complaints made by pubbers and tourney players to satisfy both or one of the party? Do you simply make changes based on how vocal people are even if it may seem "dumb" to do so? Do you ever participate in some hardcore playing of your own games to observe some of the "problems" that players may speak about?

If you can answer some of these questions, I would be able to understand what kind of directions you guys are going with this game.