Quite simple.
Anyone (member of
GNAS or not) shooting in their back yard, or anywhere else that does not comply with
GNAS regs, is not insured by the
GNAS insurance. (I am sure there is a process for getting have a go sites okayed under
GNAS but I don't know it, and I can't be bothered to check).
If you are shooting on your property then the insurance cover is that of your house insurance, which may not cover you for accidently shooting a passer by!
Beyond that you are liable for any accidents you cause.
However there are no laws against shooting your bow on your own property. So anyone
GNAS member or not can do just that regardless of
GNAS regulations. It is a concern obviously with today's bows pushing the limit for speed and power.
Given that people will shoot at home, the main thing is to be sensible about it. And make sure you consider the possibilty of a bad miss, as well as the near miss. Even if you are a good archer something can happen to cause a bad miss, nock failure for instance.
I would also suggest that you should never try something new at home before at the club, either equipment or technique. The chances are that you are far more likely to have a bad miss when trying something out for the first time.
Basically use some common sense and foresight when considering shooting at home.