Package random forest: can corr.bias be harmful?

There exists an option corr.bias for making regression analyses with the 
R package randomForest. The manual warns ?Experimental. Use at your own 
risk.? What does corr.bias precisely do and why can it be dangerous to 
use it? As far as I know the bias correction is based on a linear 
regression between the out-of-bag-prediction and the observed values 
which is used for correction of all predictions made by the model, but 
this does not appear so harmful to me.

Dr. Christian Kampichler
Sovon Dutch Centre for Field Ornithology
PO Box 6521, 6503 GA Nijmegen, The Netherlands
+31 24 7 410 410
www.sovon.nl