The link URL is: "http://www.democraticunderground.com/"
A harmless prank, but suppose somebody wrote a link title like: "Click here for good rates on car insurance" but the URL is a kiddie porn link. Bet the rent somebody does that and someone gets lured in and clicks without looking. It could be a forum post, an email, a webpage or any other place.
Exactly. Which is why this cannot work.