填空题 Being the founder of the Internet's largest encyclopaedia means Jimmy Wales gets a lot of bizarre emails. There are correspondents who assume he wrote Wikipedia himself and is therefore an expert on everything-like the guy who found some strange chemicals in his late grandfather's attic and wanted Wales to tell him what to do with them. There are kooks who claim to have found, say, a 9,OOO-year-old fifteen-foot human skeleton and wonder if Wales would be interested. But the emails that make him laugh out loud come from concerned newcomers who didn't know even the basic function of Wikipedia and have just discovered they have total freedom to edit a Wikipedia entry at the click of a button. " Oh my God, " they write, "you've got a major security flaw. "

填空题 Answer the following questions with the information given in the passage in a maximum of 15 words for each question.
What do people find out when they discover they have total freedom to edit a Wikipedia entry?

填空题 What are academics dissatisfied with about Wikipedia?

填空题 What can people do with wikis?

填空题 What's the purpose of the extreme action taken by Wikipedia?

填空题 What does Wikipedia tend to encourage people to do according to Larry Sanger?