shill

Reader's Digest 12月号の記事 '13 Things Savvy Shoppers Look for in Online Reviews' の内の一つ 'Super Short Reviews' を引用します。
Paid shills aim to get a product's overall grade as high as possible as quickly as possible, so they'll hit the five-star button and type something quick like "Gread service!"
"shill" は7/06/2010に取り上げて覚えた単語と記録があるのですが、7/06/2010の記事は何故か消えているので、再度辞書の説明を下記します。
・Oxford English Dictionary: An accomplice of a hawker, gambler, or swindler who acts as an enthusiastic customer to entice or encourage others.: Sophisticated news consumers know that Clarke is a fraud and a shill for the campaign.
・Collins Dictionary: If you refer to someone as a shill, you mean that they are paid to sell something or to participate in an activity in order to persuade others to buy or participate. : He is tarnishing his reputation by being a shill for the tobacco industry.
インターネットの情報の真偽は自分で判断する必要がありますね。