How does this best contributor thing work?

In the Law %26amp; Ethics category, I am in the top 5 in terms of the number of best answers. However, I only got the ';top contributor'; designation for Polls %26amp; Surveys. How is that?How does this best contributor thing work?
The more you answer in a particular category, and the more Best Answers you get (not the percentage) the more likely you are to get a ';top contributor'; badge next to your name, up to 3 categories. Levels, and points have nothing to do with it. I have it for answering in Yahoo 360 and Yahoo Answers categories, neither of which am I on the leaderboard, but I have been answering alot of questions in these categories recently. I do lead the category DIY and I do not have ';top contributor'; for that category, but I haven't answered much in that one for a while.How does this best contributor thing work?
The Yamster himself answered this on another question:





';A Top Contributor is an Answerer who has shown that they are knowledgeable in a particular category. You can be a top contributor in up to three categories. The better a user鈥檚 contributions are in any respective category, the more likely that user will become a Top Contributor for that category.





Basically, we take an Answerer's overall contributions to Answers in each individual category, toss them into a hamster wheel, and the ones that manage to stay on the wheel become Top Contributers.';





That link is below -- I assume they will post a BLOG about it sooner or later.


http://answers.yahoo.com/question/index;鈥?/a>
Top contributors are usually people on levels 5, 6 and 7, who have answered a lot of questions in a particular category and gotten a fair number of ';best answers.'; (By that, I'd guess they have more than the rest of us.)





If you answer a lot of questions in a particular category then you get this ';top contributor'; designation.

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