You know what's mind boggling?
How so many players think that wasting their energy trashtalking their crap team mates will make them play better.
If you're that player who wastes all their game time typing in /all chat how much your <insert team role here> sucks dick and is so bad and so shit at this game, please... why? Why waste all that effort? They aren't going to suddenly play better. Sure it really sucks that they suck at their role and are probably feeding, but you berating in all chat isn't going to change anything, in fact it'll just make that crap player perform worse because you're always on their neck.
Just, please, stop wasting your time in chat and just play the game, ignore that noob, focus on just playing the game and improving yourself or get yourself fed and win the game that way. It's so irritating hearing some self-entitled whiner scream and tantrum in all chat. For those of you who don't realise it, it's like having a whining child who's been denied their ice cream.