Amiee, if you wanted to post the pictures Lucy posted you could have quoted Lucy's post, copied everything out of it except the quote tags, and then pasted that as a reply in the other forum. They don't need to know where you got them from. As for the test of someone else's posts, I'm unclear of what the ethics of that would be since it is not an attributed publication. But like others say you can get the gist and the sources of other people's opinions and write them in your own words.