If popularity is measured by the number of questions per category, then the Chemistry category is most popular with over half a million questions.
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.
The most popular topic would be the Uncategorized category, which has a whopping 11,817,405 questions as of October 18, 2014. The next most popular category is the Math and Arithmetic category with 1,400,706 questions. The third most popular category is the Celebrity Births Deaths and Ages category with 1,029,523 questions.
Today, it looks like the category called "Blufr" is the least popular, but that changes every day.
The "Math" category with eight Supervisors.
Go to category pages and see which questions are the most popular (they will be at the top). Another category that might interest you is the Most Amusing Questions Ever Asked on WikiAnswers category. You can also follow us on Twitter or like us on Facebook for a daily feed of interesting questions.
Right now, it looks like the Blufr category is the least popular, but that changes by the day, or depending on the time period you are looking at.
WikiAnswers has a category called 'Most Amusing Questions Ever Asked on WikiAnswers'. The category is home to many amusing questions that also goes under the category strange, unusual, weird, etc. Below is the link to the category.
No answers can be added to the WikiAnswers Local category.
The supervisors for the 'Questions about WikiAnswers' category are Kamuna and Dino10.
"WikiAnswers Local" is a placeholder category for questions about certain countries. No new questions should be added to the main "WikiAnswers Local" category.
It means that you are in charge of a certain category that you are skilled at. Most of these supervisors are highly skilled people.
As of July 18, 2010 the Justin Bieber category has the most questions, holding 126 pages of questions.