Sorry bad joke.
I just think it is stupid to require background checks on private sales.
From the perspective of the grabbers it is not.
It gives them at a bare minimum, a list of people that have owned guns. I guarantee that list is sorted and ranked by the number and locality of background checks. When they eventually get a bill passed for outright confiscation, the people that have 20 or 30 background checks will get the first visits, but they WILL eventually get to those that only bought one or two.
Because Joe Public can't just call for a background check, you can count on it that ALL transfers will have to be reviewed by an FFL.
That imposes the laws/regs such as Massachusetts has that bar dealers from selling certain handguns to mere citizens.
That imposes an opportunity to tax the sale - you might not bother collecting the sales tax on a one time private sale but the dealer may have to.
It imposes a transfer fee requirement, because why would the dealer do this for free. The typical $25ish dollar fee might become typically $50ish because you HAVE to utiltise a dealer so why wouldn't the charge more?
I'll bet the dealer will also be required to submit a 4473, not just certify they did the background check, which gives them the ability to mine the entire country for dealer OR private sales to build a whole firearms registry.
When data exists it will be used. If anyone here thinks for an instant that ATF is NOT retaining (or piping to other agencies) the data they collect, even the data they are not lawfully allowed to keep, you are frightfully naive.
Disclaimer: Some of these thoughts are recycled from other people's observations and others are my own opinions. None of these, to the best of my knowledge, are based on actual inside knowledge of ATF operations or inside knowledge of the lawbreakers, sorry, I meant to type lawmakers, compiling these (IMO) bullshit laws.