In short, gift cards and gift certificates are easy to find for sale on Craigslist.
For some people the tax deduction they can receive with gift card donation is over what they can hope to comprehend any other way. A number of cases the expiry is really short as 6 a few months. https://groups.Google.com/g/giftcard-mall-my-gift-info/c/lJb4jNQqwjY