Originally Posted by markfh
If you buy guns and fill out any paperwork they already know who you are.
True, but which THEY? It's one thing to get the attention of a low level flunky in one of many federal institutions, but a petition directly to the White House may garner one attention at the highest level, AND as a rabble rouser, whereas a 4473 only says you may or may not be one.
Kinda like kicking the king fink in the shins as oppossed to flipping him the finger as he goes by.