Conversely, if you want to preserve the cloudiness, whirlfloc or not, you may want to add a flour slurry to the end of the boil to have a more or less permanent haze, otherwise over time the beer will drop clear. This may be more important when kegging as opposed to bottling because with bottling you could swirl up the sediment.
I read this in a witbier thread by BierMuncher and I believe it was also mentioned by Jamil in a podcast and it made sense to me. I intend to do this when I do a witbier in a couple of weeks because I keg and want it to remain cloudy.
My take on it was that a tbsp or so of flour in a cup of water for a 5 gal batch should do the trick.