I'm amazed that people think the government knows who everybody is online, who is who on a forums, and especially if you post on a "firearm" forum. They might, if you placard your social security number on your profile. Otherwise, your not exactly identifiable by 3rd parties (which includes the gov't). And no, they don't have magic black ops stuff that flies helicopters and teleports servers up to the bridge of their orbiting super secret starship where they access the servers hidden data including your address and stuff (things you never registered or entered) and then put it in a master database where they know who everybody is!
Or they might contract data miners to spyder the web, but those are easy to block web scripts, and all they see is your username so hrmmmm.....
And no, the government doesn't get to dig through the database. Ask me how I know
