Facts and ideas can't be copyrighted, but their expression and structure can.

http://www.templetons.com/brad/copymyths.html

This is definitely a copyright violation, and I am shocked and enraged that this was voted so highly on HN and not flagged.

[Edits]

1. The standard "Recipes and collection of recipes" argument. This is a collection of recipes.

2. I am not shocked that there is a copyright violation. I am shocked that such an egregious violation has been voted so highly on HN. We are all digital workers on HN, and such disregard for digital work is (still) shocking.