Originally Posted by floppablebootydisk
Now they know right where to find you and exactly what to use against you.
The Feds will not know what he has unless they actually come to his house for an inspection. That may or may not actually happen (it may at some point). Even then, I don't know if they actually record info about what he has. (someone who has a C&R FFL, and has gone through an inspection could answer this)
What do you mean by "Know exactly what to use against you"? Do you really think the Feds would go through a different plan of attack for each person if they ever decided to confiscate our guns? A mass confiscation would be extremely difficult, if not impossible as it is.