What a great thread. But sometimes I can't let one slide by,... I said earlier I was learning a lot in this thread, but it turns out my ignorance and misunderstanding of what goes on at gun shows was broader than I knew.

Thankfully, it looks like help is on the way.
Rburg - I'm puzzled why you were
"pretty offended" when reading this thread, adding that
"People get that way when others seem to be accusing them of...criminal intent." Makes me wonder just why you would feel that way? I was also "amused" at your statement:
"I was also amused at the newness of many of the posters along with the low post counts." That's classical. "Post counts" tell nobody a thing about posters here, or about me, or about their/my professional or other qualifications for commenting, or the validity of their viewpoints. But your comments shout that somebody has struck a nerve, and we have to wonder why? We could debate the propriety and ethics of it, I suppose, but what kind of person would be on the other side of various criticisms raised here, including blatant price gouging attempts, and taking advantage of young and relatively inexperienced browsers at gun shows? I would not agree that this is as American as apple pie, and that if you can get away with it, it's fine. Legally, sure. Ethically and morally...those terms still have at least a little meaning for some of us, I guess.
As for implying that the "OP" (I guess that's high-poster-count-expert talk for me) simply doesn't understand what he's looking at, at gun shows, because he's a novice, unlike yourself, presumably...wrong.
And then this one,
"I'd suggest we not infer criminal intent on gun show sellers unless you have a strong reason and evidence, not just conjecture." Thanks for the suggestion, but I have to pass on it. I will counter suggest that you have no basis or insight qualifying you to minimize or discredit the accuracy of the observations and conclusions of "the OP" or others who have posted in this thread. Neither you nor I can confirm or refute them all, but there sure seems to be a lot of concensus. I can't speak for them, but I don't do conjecture unless I label it as such. I'm a fact, strong circumstantial evidence, and careful analysis guy, that having been my professional focus for many years. But I still get stung by a slick gun show seller now and then.
As for this one,
I've been a regular at gun shows for a long time now, back into the very early 1970s. I've not encountered anyone selling who was trying to violate any laws. I've seen a few that might have been doing it... But I'm not comfortable implying they have criminal intent, should be banned from shows, etc. ...good for you. You've been going to gun shows for almost as long as I have. So presumably you know almost as much about the subject as I do.

But obviously, we have not been going to the same gun shows, as you have not seen any of the abuses I, or the rest of the posters, have. Isn't that amazing? I'm sorry to hear that you are "not comfortable" with I/our "implying" that some of these guys have "criminal intent", a term you, not I, introduced to apparently raise the ante. Not being a mind reader, I can't comment on intent, just actions. I guess you will have to remain "not comfortable". I'm not comfortable with some of the gun show abuses which I fear may rain on the parade for all of us. I'm still unclear about some of the things happening on the Internet. Your sweeping denial of the existence of any questionable activity is simply not supported by the facts and observations of a growing number of posters in this thread alone. I've understated what is going on at some shows, as I think you, and all of us, well know. My wish would be to curtail the most visible and obvious parts of it before some of these people, or one high visibility sting, shuts us all down. A head-in-the-sand approach just gets us closer to a bad fall.
Look, we all love gun shows. But they are not hotbeds of virtue and honesty. Could you explain to us exactly what is wrong with addressing some of their shortcomings? Or do you insist there aren't any?
Again, I'm wondering why you have taken this thread so personally, as you clearly indicated? And why the effort to discredit the message bearer and my/our qualifications for speaking? "Post counts" indeed. Am I to understand that, at some point, volume of wind delivered equals unassailable expertise? I'll just have to get my tonnage up as quickly as possible, and I imagine I may be accused of working on it.
I'm sure you agree that when somebody attempts to discredit the credentials, observations, or conclusions of one or more posters here or anywhere, it is fair and reasonable to expect a response, and it may not always be the one you expect or want. Harry Truman had a saying about that. Be assured, I'm a responder.
Warren Sear - You said:
"PhilOhio, I have never once been asked for an ID when buying a gun from a non-FFL seller, and if I would have been asked, I would have refused to show it. There is no requirement for this AFAIK.
When selling guns, I respect the buyer's legal privacy and never ask for ID."
I hear you, and share your respect for privacy, etc. But I respectfully suggest you reexamine your understanding of what the requirements are, at least regarding handguns. It sounds like you have been taking serious risks you honestly did not know about. A non-FFL/C&R buyer may not purchase a handgun in a state of which he is not a legal resident, period. And neither a licensed or unlicensed person may sell to him, outside his home state. This is not a gray area. Not from an FFL holder and not from an ordinary non-licensed citizen. You are setting yourself up for a sting if you, as a seller, do not ask for enough buyer identification to determine state of residency. Yes, this is the federal law. Check GCA 68. Is just about everybody breaking it? Absolutely. Is it a felony? Yep. Does
"Rburg" admit that any of this might be going on at gun shows? Absolutely not! I think that most of these rules are hogwash and patently unconstitutional. But the judge doesn't want to hear my opinion on that. Until these laws are abolished, please protect yourself. Politely ask for a drivers license, military ID card, etc. That's enough. If it's your home state, and the guy looks like the one in the picture, everybody's happy. Sell the gun. No need to write it all down, at least not in my state. You complied. You did not knowingly sell a handgun to a resident of another state, without going through a licensed FFL holder. And you exercised the due diligence the law requires to make that determination. Didn't know that? Now you do.
And don't go to a gun show in another state, set up your table, and begin selling handguns to residents there, with or without an FFL. You are in deep kimchi. Long guns? No problem, unless the other state or local jurisdiction has additional rules.
Anybody care to be the latest test case on this? It's a slam dunk. The only reason the shooter community has not had more problems in this area is that BATFE has its hands full dealing with violent offenders...I would guess. Yes,
"Rburg", that's my conjecture. But why keep taking chances? The guy trying to buy from you could be somebody they are tracking. Want to spin the roulette wheel?