Somebody mentionned not wanting the opponent to know the intentions as a reason why he is against forward ''pressure''!....

Well as Wing Chun practitioner,I can say that my intents are only to stike at the center of my opponent,nothing else!...My light forward pressure or intent (as you prefer) gives me a headstart in offense if I feel a gap in my opponent structure and...My opponent's light forward pressure gives him the same in defense.As Wing Chun's motions generaly are forward motions we, this way, don't have to overcome inertia in attacking or defending. The motion is always in gear if I can say so!...

I hope this makes sense to you!