Here’s a great example of a QSL report from Pirate Station X-FM Stereo Shortwave monitored Halloween 2015. Not only is it a beautiful card, Redhat (the Deejay) also included the playlist as a .txt attachment.
As I recall he also made live announcements of who had left reception reports/comments on the HF Underground forum as well as for those who sent him emails directly.
I sent a short recording as part of my reception report, and it was an added bonus to see that mentioned in his QSL card.
I am quite impressed with all the effort made to turn out a quality QSL card, but a Pirate transmitting in stereo obviously appreciates quality!!
Pirate Radio receptions are memorable events on their own, but the QSL cards really make them special! Happy Pirate hunting!