Answer questions.
WikiAnswers ranks your contributions by how many questions, answers, edits and community work you contribute to the WikiAnswers community.
No, there is no special award or badge for 1,000 contributions.(See the Related question for more information.)
WikiAnswers does not pay for contributions. All contributors and supervisors are volunteers who love the site concept.
You can't
Its not
The thing that matters more than the number of contributions is the quality of contributions. On WikiAnswers, even though you may have 1,000 contributions, many may be vandalism. The better the quality, the better the chances. Also, there are a few requirements that need to be met. See the related question below.
Unfortunately there is no way transfer contributions made as an unregistered user to a registered WikiAnswers account.
There is no end to the amount of contributions you can make.
Going by questions and category contributions, Justin Bieber is the most popular celebrity on WikiAnswers with more than 57,500 questions in his category as of 2011.
200,000 contributions
Rudiful2 is the top most answerer of Wikianswers based on the number of contributions.
There isn't a 'best user' on wikianswers. There is only those who have lots of contributions.