Today's PMQs gave a good reason for such an approach!
The Tories have admitted a member of staff altered a Wikipedia entry on the artist Titian after a row between Gordon Brown and David Cameron.
During exchanges at prime minister's questions, the Tory leader mocked Mr Brown for talking of Titian at 90, when he said in fact he had died age 86.
Shortly afterwards a Wikipedia user registered at Tory HQ moved Titian's birth date forward by four years.
The party admitted an "over-eager" member of staff had been responsible.
Oh, the guffaws at Tory HQ at that little trick.