No, and nor is it a profitable organization.
WikiAnswers does not pay for contributions. All contributors and supervisors are volunteers who love the site concept.
WikiAnswers ranks your contributions by how many questions, answers, edits and community work you contribute to the WikiAnswers community.
Answer questions.
Its not
You can't
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.
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.
There's no limit.
As a thank you for all your contributions!