[npteljes]

I'm not debating the bad things, they do happen. My point is that they are also providing value, which OP said they don't. Google and Facebook is not just a rehash of other's content, they are also vast, and useful platforms.

[Retric]

The Pirate Bay is also a useful platform that doesn’t produce any content.

[ipaddr]

They are a rehash of other people's content. It doesn't mean they don't provide value but they are not primary content makers just a platform for publishing/searching for content