I once heard a guy with a really strong Californian accent, just working this opponent
I own you b##ch, yeah your down again, keep running little b#tch you can't hide from me, I'm just using you for target practice you little pr#ck.."...e.t.c
And at the end of the game he said " ah what's the matter little b#tch you running off to cry to your mummy?"
and then I heard a voice from what sounded like a twelve year old kid shakily say
"I've got to go my dinners ready"
It was one of the most harrowing and ridiculous conversations that I have ever heard, but I think as far as the upper hand I would give it to the twelve year old boy because everyone laughed at the Californian guy and then left the lobby.
There doesn't seem to be a quick "mute all" button on ghosts, as there was before, you have to do them individually if you have time.
The game is 18 restricted as well, as a foot note, so some responsibility must be shown by the parents, although this doesn't excuse this sort of behaviour.