I think it's fair to ask for a source whether a person is an expert or moderator or not. I get fake news submitted to me all the time and I know a lot of fan sites do likewise. That fake paris hilton site that even MTV reported on is an example of why it's important.
Danielle has her sources, she always is right with her Pink news and she's proven time and again...she never says who she gets it from because for whatever reason I am guessing she's not able to.