So gun owners attending the SHOT show are sick of the people that put on the shot show (NSSF, not the NRA). Sure. Just like MAIG claiming that most NRA members hate the NRA. Of course when you have thousands of attendees (something gun control advocates don't see anymore), you're bound to find someone who'll believe/say anything.
And in another bit of irony, this anonymous individual has been retweeted numerous times by Ladd Everitt of the CSGV. The same individual who lambasts pro-rights bloggers for 'hiding' behind internet handles.