That's not very sound reasoning. How can you say it's a scam when the site is even backed by the Better Business Bureau.
Plenty of legitimate sites ask you for information. It's a matter of how they ask and for what purpose. If you check the BBB they don't have any complaints for the company either. That's a good sign that they are legit.
Edit:
Here's a link to what I was talking about
http://www.bbb.org/greater-san-francisco/business-reviews/scholarships-and-financial-aid/free-college-scholarships-in-san-francisco-ca-192171
Also, if you look around the net, lots of people are asking about it. I was looking for scholarships even though I'm not a mom. I got some spammy emails, but nothing bad happened.
People do win the scholarship too, a little facebook/google snooping will pull up real-life profiles and stuff.
I don't trust them like I trust google, but it's not a scam.
J.