BetterToGive...you've seriously got this many people telling you you're in the wrong here, and you still can't admit it? People have explained the purpose of signature confirmation and the added degree of security it provides over mere "tracking". And if you paid $108 for the gift card, I'm guessing the actual value of the card is at least $125...if not $150. So, on that kind of item, it's not surprising at all that the seller would want to give himself some added reassurance that he's not going to get burned by a scammy buyer. You act like he did this because YOU won the item. It's not like you're being profiled here. I'm sure he would have added signature confirmation no matter who won the gift card.
Conversely, you CAN profile who you bid on items from. You raise the question of whether you're being scammed. Ok, a fair question and something everybody worries about. But then you admit that he has 100% positive feedback with many reviews. That should immediately alleviate any concerns and show you that your alleged "fear" of being scammed is unwarranted. You also keep talking about how he "made you wait a week". Well, the shipping process has to take SOME time. It's not reasonable to hold that against him. Ok, he was late to ship it, but he gave you a reason why. If you're not willing to give someone the benefit of the doubt when they tell you they had a family emergency, then that just shows your own cynicism and distrust toward society. If somebody shipping a gift card one day late is the biggest injustice you have in your life, count your blessings and recognize how fortunate you are.
You're wrong, man. I get being frustrated. But part of what you're frustrated with is USPS. It's the reason they're going out of business. They're slow, their tracking system is terrible, and they're often understaffed. I believe in karma. And if you really feel like you need to come down on a guy who may actually have serious things going on in his life, don't be surprised when it comes back around to you. Ultimately, I would let his feedback speak for itself and just let this one go.