A few feints to throw off your opponent can work very well in a 2-player game, where, like the grandparent says, they throw off his OODA loop and can give you additional room to maneuver. In a multiplayer game, though, it's unlikely that all your competitors will be thrown off. One will go for the ideal strategy, irrespective of competitors, and while you & your chosen adversary are duking it out with feints and countermoves, they'll silently come up and pwn you all.
I'm reminded of the Microsoft/Netscape battle during the first browser war. The two of them set each other firmly in each others' sights, each trying to predict what the other would do and counter it. In the end, Netscape died and Microsoft became irrelevant, and it was a tiny startup called Google that ended up winning.