So I do not think this causes any harm either. I know they say it will drive them away, along with smoking. But I have not seen this in eaither case.
From what I have seen it makes the deer think another deer,
Is whising away and makes them come to see who just did it
When I used to bow hunt in the 80s I used to stand up in my
Tree stand and whis away and pour some fox pee on it.
And the deer came around anyway.
I even heard of people whissing in scrapes and the bucks come running.
To see who the other buck is
So in MHO it draws them to the sound.