I wouldn't go judging by forum posts. Nevertheless, welcome to blueside.
This wholeheartedly. You have to remember that most people that 'troll' forums have nothing better to do. Most of the 'nice/good' people are busy doing other things in-game or in real life.
There are plenty of silly or immature comments/replies from both sides.
Also, remember that you will find drama on *either* faction. It's part of life (frustrating as that may be).
I won't comment on maturity since that's a dangerous topic and starts nothing but flame-wars. But it will really depend on the people that you surround yourself with more than anything. I, for one, hate trade chat. But I ignore it (or try to) and instead hang out with people that I consider to be very friendly, helpful, and mature.
But we all have our days, right? *wink*
Nevertheless I am glad you were able to make a decision. Welcome to Feathermoon!