That’s a good question! It’s the anniversary of the date when a seller joined Etsy. I have been there for 4 years come July 23rd. Every year (if I am paying attention), I try to have a special sale near my Etsyversary as a way to thank all you folks who make it possible for me to make my living making stuff.
Why aren’t blocks available as free BOGO choices? Well, in a word, labor. I’m more than happy to send you a free print if you purchase a block though.