So....What is YOUR opinion on VIN swaps ?

When we replaced frames at the dealership, we had to remove a VERY distinct portion of the frame and return to HD for verified destruction.

Otherwise someone would buy an aftermarket frame (which can be had minus steering head)and reuse the VIN.

Most customs are built from state assigned VIN Numbers. The motor on the number doesn't mean much, although it used to be used by some makes add a vin back in the day.
I worked at a harley dealer back in 1993, we used to have to do that with the steering head as well. Cut it off and send it back. Then they would send a new replacement frame with an identical vin stamped in it to the old one. This was on collision repair deals. We also did stuff with custom bikes using paughco frames and CCI engines. Both the frames and engines came with numbers and certificates of origin. The state would issue a title which had the frame numbers, and as a custom build