The tone of the comment seems intended to dismiss through ridicule, but that's beside the point. Its thesis that that one should have knowledge of guns and gun culture to have a credible opinion on gun legislation, so I'm merely asking that be followed up on, with an opinion on gun legislation from those with credible opinions.

I see a lot of dismissal of gun control advocates in threads like these, but arguments regarding gun control from those who claim authority on the matter tend to devolve towards strident defiance - "if you try to take my gun I will shoot you with it." That doesn't make for constructive discussion.

Most firearm violence is committed using handguns and most illegal guns are obtained through straw purchases. The best thing we could do would be to implement universal background checks (i.e. require background checks for private sales) but in a privacy-conscious and convenient way that will maintain support from the pro-gun side. Some kind of app or mobile website that allows the background check to be conducted for free on a smartphone, perhaps using token-based authentication to avoid the need to share personal information.

People who sell guns want a way to perform background checks on the people they sell to, but there's no way to do it because only licensed dealers can access NICS. As long as the private background check system has the same privacy invariants as the existing paper system for dealers (primarily that it is not possible to look up which guns someone owns, only to take a serial number and see who owns it) there won't be significant opposition.