Paying Grooveshark member here, will be sad to see this go. As unorganized as their service is, their library is massive. Of course, it's obviously illegal how their library is able to be so massive. I'm hoping I can at least save my playlists so I don't have to recreate them later off memory.
I would really love it if Spotify could take some UI lessons from Grooveshark.
Every industry has deals that are too good to be true. Hell, buying stolen cartons of cigarettes out the back of a truck is "obviously illegal" but people have done it for centuries. No, I'm not equating copyright violation with theft - you could say "it says a lot about the software industry that a site where you could type in the name of a program and download it for free is 'obviously illegal'". Kind of like the vast majority of uses of the pirate bay are illegal. It doesn't say anything.
I also love Grooveshark, so much that I wish they'd put blocks on how much you can play for free to get more income. I often forget to log in, have adblocker on by default and after a few hours realise I've been using their service completely for 'free'.
I would really love it if Spotify could take some UI lessons from Grooveshark.