You must separate things, what you do, and what they do. You accusing Filesonic for not being legal, while infact, you are the one abusing legal service. How that makes them illegal?
If you share copyright image (mp3, video) on facebook/youtube, you get exact same thing.
If you upload copyright music on sound-cloud, same thing.
So, is youtube, or facebook any different? Are they grey? Is google grey, because you can find infriging material using them?
nice