If you republish this content, we require that you: [...]
Hyperlink directly to the original question on the source site [...]
This is about the spirit of fair attribution. Attribution to the website, and more importantly, to the individuals who so generously contributed their time to create that content in the first place!
Anyway, I hope that clears up any confusion — feel free to remix and reuse to your heart’s content, as long as a good faith effort is made to attribute the content!