The intent is to hold people accountable for actions on the Internet for which they would also be accountable in person.
Fraud, copyright infringement, libel, bullying, etc.
Unfortunately, if the White House (or any other liberals!) get involved, you have a huge chance of abuse.
Oh please. Don't try to turn this into a right vs left issue. It's not. I'm sure you'd classify me as a liberal, but you won't be seeing me calling for your arrest form the crime of double posting.