There are many ways to set up a wiki, including:
You can never vandalize Wiki Answers since it is an online site. However, you can troll it by providing wrong answers that make no sense.
Because all questions with answers in the world present at wiki site.
No. A 'wiki' is any site that uses the wiki system of public creation and editing. Wikipedia is most well known site that uses this system, but that does not mean any site with 'wiki' in, is in any way related to the Wikipedia.
The WIT Program is the Wiki Answers Influential Teen, they help make other contributors/members feel welcomed to the site. In addition to that the Wiki influential teens has a job to complete within the site, and its to make it better, safer, and more fun for others to enjoy.
The most well known site using "the wiki way" is probably Wikipedia.com
One may use the site "Wiki How" to learn how to make a paper snowflake. There are also instruction on the site "Instructibles" and videos on You Tube.
You can copy Wiki content for use on your own site - BUT - you must acknowledge on your site where the information came from.
Wikipedia is a wiki because the underlying software (Mediawiki) has the features commonly associated with a wiki site. The word wiki comes from Hawaiian for quick and a wiki site allows the content to quickly change since anyone can edit it.
Wikipedia
Wiki answers... Answers.com
Yes. Wikipedia is an example of a wiki, a site that can be edited by its users.
Wiki Answer's Valuable tool's is the free answering people who help make it. Without us the Contributer this site will not be the same as it used to be.