Apparently there are quite a few people who have known about Foley, enough that they were warning the pages about him.
Alas, the kids quoted as saying they were warned about Foley have all recanted. Nobody warned anybody about Foley.
We have allowed the media to report lie after lie after lie,and many of us have reacted to those lies.
The "page" who was quoted says ABC misunderstood. He was not "warned" about Foley, he was told that Foley was a "bit odd", which I assume means someone was warning them that Foley was gay.
Girls naturally know not to get too friendly with older men. But Boys don't know that unless you warn them.