Ok back to the original question from the OP. I manage a 2000 acre estate which is nearly all CWD along with 3 farms in the area totalling about 3,500 acres. I have stalked CWD for about 20+ years.
On the large estate there is a well establish pheasant shoot, non commercial. I have never seen a CWD feeding from any Pheasant feeder. Muntjac yes, CWD no. I am not aware of anyone putting up a feed station for CWD, but then there may very well be, but I am not aware of it. Muntjac yes.
I do not see much damage environmentally by CWD on the grounds I stalk. They are grazers mostly, and seem to like fresh growth on old stubble fields, and also rape seed fields.
As far as being easy to stalk, I think that very much depends on how heavily they are hunted/stalked. I wouldn't say they are the easiest deer to stalk, in my opinion that's Muntjac. But they are not the hardest by a long shot, (excuse the pun). As I said before the hardest part is sexing CWD, size, colour makes no difference, you have to see the tusks for a buck. Not easy when they are young animals. One way is to look also at the ears. The bucks can fight like stink sometimes, and they often split their ears, badly. That can be an indication of a buck, also their rut is around mid to late December, and then its quite easy to distinguish a buck by its actions and body language.