I got pissed at Tumblr a few years ago when my late grandfather's blog with all his songs became inaccessible only a year after he had passed. Of course, I had taken a snapshot almost immediately because I knew you couldn't trust any of it to stay online forever. But Tumblr's flash audio player meant that none of the song files could be saved in the archive. It just felt so... irresponsible how incapable their website was at preserving anything valuable.