I only just found this thread, and a few thoughts come to mind....
Maybe it's lucky for the CAA that aviation is so male orientated. Everyone seems to intuitively understand that women, especially those living alone, might not want all and sundry to have access to their addresses. I can see it now - young blonde female gets out of her aeroplane, is chatted up by local yobbish spotter, and rebuffs him. He takes the reg, looks it up on G-INFO, and goes round to her house at dead of night.....
(And yes, he could have followed her car, or looked her up some other way, but her name's Jane Smith and it would have been a lot harder.)
Oh dear, CAA, I think the media would love that one!!!!
But seriously, people have a right to a certain amount of privacy, for any reason, or no reason. We can go ex-directory. Why can't we ask to be "ex-directory" on G-INFO?