Well, whatever your understanding of God is, does it make sense that an infinite and almighty being is there to do your bidding by way of some special formula of prayer?
Lets look at it for what it is. When you ask for something, you are already limiting your framework aren't you? Just imagine from our perspective a witness asking God how to be a better publisher in some way, better serve the organization. Well, if it isn't even God's organization in the first place, why would God even answer such a prayer?? The person praying may be very sincere, but if what's being asked is just off base in the first place, then it just doesn't make sense to answer. It's like someone asking you "which bone would you like broken in your body?" when you don't want any to be broken. We have to see our assumptions for what they are, assumptions.
There is one other kind of prayer, the kind that doesn't ask for anything - your good'ol "thy will be done" prayer. One way of looking at it (and I do note that it is only a way to look at it) is simply acceptance of what life brings. I qualify this statement because frankly, it's very easy to write it off as an idea, whether you like it or not. But if you just relegate it to a thought then it just becomes dead, and in fact there can be no acceptance because it will only be used as a tool in rationalizing your world view if anything. The psychological content is not important in prayer, not important at all. After all, if you believe God is all knowing doesn't he know what's in your mind? Just take this example of the sincere JW: Which would he do better with, sincerity without the psychological programming, or the programming without the sincerity? I think the answer is obvious.