[eli]

Err, that's actually a very reasonable Terms of Service.

It says that you own everything you post, but you are granting them the rights to use it. The only unusual bit is that you are additionally granting them the right to go after people who scrape your content on your behalf.

[qq66]

That's not that unusual for sites that contain user-generated content. If someone's hosting a blog full of scraped YouTube videos, YouTube can go after them without contacting the owner of each individual video.