Not in the UK, no data is collected unless you spend over £5000 in 1 transaction or over £10,000 in one year per bullion dealer.
I presume you live in the "land of free"

+ why would they go through all the hassle of chasing people spread out through country that may or may not have an amount of gold when the laws are already in place to freeze and apply a haircut to their bank balance. All done with a few key strokes, lower cost + much higher return.
No i dont live there, but still it is very funny because even if the dealer doesnt collect, the bank might have the info necessary. Or the dealer keeps a record of his customers for whatever reason.
I`m not sure, but i figure it's not that hard to get a list of past gold buyers, because the info is out there.
PS. Bank accounts will be wiped instantly, no question about that,
then they come after the gold.