It's not an exaggeration, it's just that you are not aware of it. When someone charged over 20 thousand dollars on a credit card that we had never used, in a wall-Mart in Nebraska, and another in Chicago, I spent time with the special fraud unit at my bank, along with the local sheriff, "who also had been a victim of fraud", and the feds" I called them also because the people went into our bank Branch and had a "KIT" which consisted of both my and my wife's ID, ranging from Drivers License, SS card, and several other pieces of I, that it would be impossible for the average person to even figure out how thy go these, since they never leave my safe.
It was explained to us over the next 2 weeks that they hack into data basis, so what ever you do makes no difference. they get your SS# and name and address, from there we are told it's basically open season. They can even try to get a 2nd or third mortgage on your home without you even knowing, same with your taxes, they can file an amended return and you can spend the next 2-3 years trying to clear your name. If you doubt this, then just go to the IRS website where you can download the paperwork to send the IRS to prevent anyone form being able to do this by password protecting your returns in order to file. It doesn't matter what you make, they can file a new amended return get a bunch of money back, then you won't know it till the following year.
This is why worrying where your gun goes , "although a noble thought" is impossible to really know. unfortunately in this modern world things are rarely what they seem. The way things are set up now, it is too easy to get around the law if you are a bad guy, especially when you have guys selling guns for double what they cost new, for that exact reason. they even say in their ad that they just will ask you if you are allowed to own a gun. I wrote to that and their websites about their policy's and they thanked me and did nothing about it, so I agree with you, but it's not going to change anything unless you sell through an ffl.
When you read or hear about stores like Target getting hacked, that is 40 million sets if ID out there that have been compromised, there is no way to put and end to it, without going back to cash. If you are saying what does this have to do with selling a gun, the answer is you really don't know who the person you are dealing wit, is who they say they are, unless you know them personally, that's why I said it really doesn't matter, all you can do is follow protocol, and use your best judgement.