I have to admit, I was initially horrified that someone would post on a pro-gun forum, bragging about turning in guns at a gun buy back.
However, upon furthering the read, I realized where the OP was going.
I congratulate the OP for his punking of Daley and the rest of the mis-guided but foolish anti-gun people. The proceeds were used properly for a terrific cause. I applaud you.
They probably didn't even give any thought about the quality of the firearms you were turning in, at least during your first stop.
However, the second stop is where mistakes were made. You gave them worthless junk and they gave you several $100 gift cards. Even though this was supposedly a no-questions-asked program, you aroused their suspicion by the number of old worn out junk. This would be your first mistake. If they are tracking the card's numbers to see where they are being used, they will see that some of their cards went to purchasing more guns and ammo. Second mistake. Lastly, you let them take your picture. This will most certainly be used at the next gun buy back to see if you return next time with more junk.
Solutions, going backwards;
1) Don't pose for anymore pictures.
2) Don't use the cards for buying guns and/or ammo. You said this was your gun club? Next time try auctioning the cards off when you have your next gun club meeting........say, $50 a raffle ticket for a $100 gift card. If you have more than a handful of members, you would end up with far more to donate.
3) What is junk? One man's junk is another man's treasure. I know, I just used a cliche......too bad.
Seriously and better yet, instead of empowering those jerks to hold more GBB's, try listing what you have here. I'm sure if you let people know what the proceeds are for, they would generously open their wallets, even if times are a bit difficult.
I guess what I'm trying to say is that there are always alternatives to Gun Buy Back programs.