I think as long as you are not giving the exact name of the WMA or WPA or whatever, you are fine. I have no problem with somebody stating they hunted near Watertown, SD or wherever. Guess what, there's a boatload of public land within a 45 mile radius of Watertown and it'll take days or weeks to cover it all without knowing the exact piece of land.
Just like fishing, you can say the walleyes are biting good on a certain lake, but you still have to find them within that lake, have the right tackle, weather, time of day, and whatever else. When pheasant hunting, you still have to approach the birds the correct way in the field, have good dog work, be in the field at the correct time, etc.