I have been on a gym for 47 days. Why can't I get gold for defending for 1,000 hours

Unfortunately that badge doesn't update until you're kicked out.

Click in, feed, click out. Should give you the gold, unless I misunderstood your issue (gold takes slightly more than 498 hours of holding, once you account for the 100 gym xp of adding )

It won`t count until somebody sends him home

Man, would have been a sweet deal I'm the old gym system.

I’m sure if you post the cords, a “traveler” will kindly knock you out.