I've been listening to Bluebird Radio from Netherlands on 1629 kHz via the Twente web receiver this afternoon. I've also been listening to another Dutch pirate on 1618 kHz. The programming is what I'd expect: mostly polkas and schlager tunes and some shoutouts.
About 25 years ago, I heard the pirate Farmers from Holland a few times on shortwave. If I remember correctly, I sent the station a reception report and a cassette recording, but I never received a response. Ah well, that said, the response from my reception reports to Dutch pirates has been far better than that from licensed stations in Peru and Bolivia.
Farmers from Holland had a fun QSL and it would have been nice to have received one, if for no other reason than that I could have used my own QSL to illustrate this blog entry, rather than search around on the Internet to find this image: