WikiAnswers does not pay for contributions. All contributors and supervisors are volunteers who love the site concept.
No, and nor is it a profitable organization.
WikiAnswers ranks your contributions by how many questions, answers, edits and community work you contribute to the WikiAnswers community.
You can't
Answer questions.
Its not
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.
No, WikiAnswers will not pay users to add links.
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.
You can't