Tell me, is this common? First time I've run into it.
I was looking through a wedding registry for a couple whose wedding we are attending in June, picked out a few items on their Target Registry, and went to purchase them...and Target doesn't keep the couple's address in the gift registry. I have no idea what their new home address will be, so I can't buy them anything. Luckily I know the bride pretty well so I can call her and get it...but how irritating. Now I know why nobody else has purchased anything off their registry.
Double-check to make sure your registry keeps your address on file for the guests, if you can!