Ask HN: Angel List and fake profiles / investors

Hey guys,

I recently added my startup on Angel List and I am getting pitches from some investors, which is all good.

However, those investors do not look very real. All of them (that contacted me so far), had a free email account (gmail, gmx or yahoo) and had some companies in their linkedin profiles / twitter profiles that do not look real. In a few of them it looks like a fake identity was created only to be used on Angel List.

Have you guys noticed it before?

Am I being too paranoid?