The site is a good idea but some moderation is in order. While I personally have no problem with any of the pics or nicknames, it might be a good idea to put one's best foot forward, instead of just any foot. For example:
1) pictures containing light and heavy machineguns (and a cannon!) might scare more than convince. The point is not to show off the newest toy but to show the human face of the gun community
2) nicknames like the "Normanator", "Say Uncle", "Weerd World Aaargh", "Random Nuclear Strikes", etc. are funny to us but NOT to the intended audience
The above highlights one of the inherent uphill features of the struggle for gun rights - most gunnies are not politically savvy, whereas the antis crowd have on their side most of the media, i.e. professional propagandists. We gotta get smarter...