You are on freerepublic. You are already on a list. Fighting now with paper and electrons is much easier than fighting later as people have their taxes audited or have the health care cut off, or are picked up for reeducation.
Exactly. Bunches of them actually. If you've bought a gun through any FFL dealer they know you have guns. If you've bought any guns, ammo or accessories with a credit card they know you have guns. If you've joined any pro-gun organization they know you have guns. If you've ever sent a letter or e-mail to a Congress critter in defense of gun rights they know you have guns.
About 110 million Americans, 1 out of 3, own guns so there is really no need to be shy about it now.