Ah, an obvious factor that I failed to consider (homeowner being absent), thanks.

Is this different from a thief "casing" your house to determine if you've purchased big ticket items? If their access to the information is logged (which I know isn't always going to be valid) and you're notified that a civilian accessed your gun inventory record, is that more or less problematic than someone who just watches your house every weekend for a few weeks after, say, Christmas, to see what large packaging you throw out without breaking down?

I'm reconsidering my opinion on public access, for certain, and I'm sincerely trying to be as informed on the caveats as best I can.