This question comes up every Fall.
As you already see, some will say let it fly, while others, to include myself prefer to use a bottle,sorry lady's, I don't have an answer for you
No doubt some here will say that they actually will pee on a scrape, and when they do so the deer always shreds the scrape afterwards.
This question is akin to the "smoking cigarettes in the stand". Some will say that they do it all the time and it doesn't matter, while others will advise that you should never do it