Some FFL's prefer not to deal with random amateurs shipping guns to them, they prefer to receive from other FFL's who know enough to include names and other useful info.

I suspect that most FFL's who've been in business a while, have stories about opening unexpected packages containing nothing but a gun. No seller's info, no contact info, no phone numbers, no clue where the gun is supposed to go.

That's a problem for the bound book, because Federal law requires the FFL to record info that the FFL doesn't have.

As for keeping the JBT's in NY happy, I have no opinion.