They don't talk as much on the English stars game because every day, the votes for nomination could tie (like in castings) and ties come down to negs. And if you talk too much and you're involved in the split, you'll be negged and go up. It's very confusing.
But if you compare them with previous castings you will realize that they barely talk. This game is not supposed to be about negging and plussing that is supposed to entertein everyone.