Garbage on sign up page and strange info pre-populated in fields

Strange thing, on the registration page for there is some strange garbage that I cannot determine where it came from. See the: <![if !IE]><![endif]><![if !IE]><![endif]><![if !IE]>Write down whats your favorite hobby is (required)

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Also, the name and zip are being pre-populated with someone’s info and I cannot determine how that is occurring.

any ideas?