To each his own opinion. Im not talking about a deer running balls to the wall like its being chased obviously, just a casual walk. Really its no different than the guys you watch on tv shooting a walking elk its just a smaller target. Regardless of the target size you have to be confident in your shooting abilities. There are alot of variables with shooting a deer thats walking but theres just as many as one thats feeding. The only shot that you can guarantee the deer wont duck/jump/spin or any other way affect your shot is to either 1) shoot it while its bedded or 2) hope for one the big boys thats lived even though hes blind and deaf.
Im not saying I never try to stop a deer thats walking, thats not the case. Isometimes attempt to stop themwith a soft doe grunt. Statistically my shots are at deer that are standing still. Of the 7 or 8 does I took this year only one was walking. I just placed my stand in the only oak along a thick hillside of pines and generally you get enough opportunities for a shot. We all know our personallimitations and I by no means tiptoe the line. If I have any doubt what-so-ever than I just dont shoot.