/mu/ used to be a lot more interesting, but yeah. Nowadays it's mostly an Anthony Fantano discussion board, but I remember talking up some really interesting artists on there a few years ago. People would trade Death Grips demos for Monkees stems, and a number of relatively large artists used to frequent the board too. My fondest memories were chatting up Iglooghost who'd visit every so often, posting links to demos that sounded like keygen music from another planet. Dude didn't even need a tripcode: everyone knew his stuff when it came around.