Question

You go to a web blog and find an article that says there is archeological proof that Erik the Red actually built a community in Massachusetts before the Mayflower pilgrims. The author, however, must remain anonymous until his dissertation is published that explains his proof. Pitfalls in credibility?

Answer 1

The pitfall in credibility here is that the author is not naming himself. It's important for the author's  name to be revealed so that the reader can judge the piece accordingly. He might have previous bias about the subject, or a record of improper research, so his name is key. 

Answer 2

The pitfall is I haven't seen the proof for this claim to be true. I also don't know if he is an expert or not because I don't know who he is.