What causes a TOP CONTRIBUTOR's badge to be taken away?

Question:

What causes a TOP CONTRIBUTOR's badge to be taken away?

Best Answer - Chosen by Asker: Here's what one of the actually Yahoo staff said about it:

"Top Contributors are not necessarily determined by an Answerer's level. A Top Contributor is an Answerer whose Q&A shows that they are knowledgeable in a specific category. You can become a top contributor in up to three categories. The better your contributions are in any respective category, the more likely you'll become a Top Contributor for that category.

We basically take an Answerer's overall contributions on Answers in each individual category, toss them into a hamster wheel, and the ones that manage to stay on the wheel become Top Contributors."

Or there's a whole blog entry on the flag here:

http://blog.360.yahoo.com/blog-d8ph0dcor...

It's rated on a weekly basis, and the exact criteria keep changing. Hope that helps!