Hi Matt.
Only the person pulling the trigger can make that decision, taking into account of his surroundings, weather conditions, and personal skill levels, confidence.
As I said, if the hunters equipment is up to the task, along with his/her marksmanship skill's, then why should he not take the shot.
The same can be said for a not so practiced marksman shooting at 30yds, is it safe, should he make the shot?
I think we are sometimes to quick to jump on people, and make our own assuptions before we know exactly what they are about.
As I said before, it is most deffinatly