By all means, be upset. You absolutely have that right. Everyone gets upset about things in the game. It can be frustrating, you can think a mechanic is unfair, that’s fine. It means you’re passionate.
But my issue is how I see people using that passion. More often than not people are destructive instead of productive. You can be annoyed about how say, brig is balanced. But people need to learn to temper that anger and channel it into productive ways that don’t involve us hurling insults. Brig isn’t going to break into your home and whip shot you across the room.
People tend to overreact, and create unproductive comments in the game and on the forums (not everyone, but enough for us to be discussing it). As they say, you catch more flies with honey than with vinegar.