I would love to have a one-click way to block players. Negativity and trolling are the single biggest detriment to this great game. Much less of an issue if I can quickly block that user from my screen forever.
Today, I have to wait until after the battle (remembering the user name hopefully), click their name in the summary screen, then click + to add them as a "friend", then click 3x to get back to the garage, then click chat, then click their name again, and pull down the menu and select block. Am I missing something?
Probably a much larger change, but it'd be nice if "block" also meant I'd never be in a match with that player again.
And finally, adding an in-game "karma" perk would be great. I.e., blocking gets you negative karma, and the perk is reduced by the number of people that have blocked you. Or something. Could work a lot of different ways.