IANAL, but this has been discussed a couple of times, most prominently here: https://news.ycombinator.com/item?id=3641312 https://news.ycombinator.com/item?id=3

IANAL, but this has been discussed a couple of times, most prominently here: https://news.ycombinator.com/item?id=3641312 https://news.ycombinator.com/item?id=3641312 . Short version: comments are copyright @ their owners, HN has an implied license to republish; other sites do not get implied license by the virtue of commenters _not posting it there_. You will have to reach out & ask each of the commenters directly to ask for republishing permission. Also note, that despite advice given below by rest of the thread, legal does not care whether you store it yourself, or pull it via API; Copyright / republishing permissions are required for the content either way.