Many years ago while my wife was six months pregnant we went scouting in late September. As pregnant women must, she had to pee at the end of the woods road where we parked the truck. The next weekend there was a fresh scrape on the spot.
I pee in scrapes whenever it's convenient, and it hasn't hurt anything as far as I can tell. I've quit being concerned about where I pee in the woods. Near a stand, I scrape back the leaves and cover it up when I'm done, because I have known deer to react negatively to a fresh deposit.