No one's "forcing you to keep silent." You choose to cater to select criticism (note: "select," since it's never the legitimate criticism that you actually should listen to) in order to then complain about how tough it is for you.
To reiterate: you picked a crappy avatar that you know is pushing the limits. Then a regular member, not a member of the staff, sends you a concerned PM about it. So you change it, by your own volition, and then proceed to play the victim card and complain about it?
Fucking get over yourself.
She's a bit like Genji and Ana. All characters become more effective as you face better players using them, obviously, but some scale dramatically. An expert Zarya, like an expert Genji or Ana, can feel utterly unstoppable.
And she moves faster while firing. Blerugh.
So how do the rules work on the Arcade mode with the free loot boxes? Do you have to play specific modes to get them, or just every 3 arcade wins you get a new loot box?