Level 7 Referee
Yep. Been there. I still see and referee some of these players. They are quiet as a mouse when on my field.There is a very simple answer / response here. The next time Dan Gosling shows any kind of dissent, don't talk to him just shove a yellow card at him, and when he inevitably does it again show him another one.
I've been on the wrong side of this before, where a player has had a moan at me, I've made a sarky and put down comment back, player has complained to his manager and I've been reported. If you can't take it back don't dish it out.
For some of them their true nature slowly creeps back in but they get back in line again once they see a yellow.
But unfortunately as @Justylove explained, EPL referees don't have the luxury of using cards freely for events that can be managed. If MD or any other referee cards him for dissent anytime soon, everyone would call it a revenge attack. Damned if you...