It is because the site relies on volunteers and not everyone knows the answers. So contributors only answer the ones they know. Often, someone has to search your question in the unanswered ones and answer. Or they might not even see your question because there are so many.
We don't know if we know everything but we will try to answer all the questions we can!
It could be that you've been blocked because of inappropriate behavior while on WikiAnswers (whether questions or answers).
No, it doesn't. I find this personally hard to believe. I'm just looking for stupid questions.
Yes , you can answer the questions on wikianswers.
Umm, they do people make an account and find questions they know the can answer, ok?
There are over 224,500 questions about celebrities on WikiAnswers.
There are over 6,500 questions about authors on WikiAnswers.
There are over 6,500 questions about poets on WikiAnswers.
WikiAnswers visitors ask questions. You wrote this one! :-)
There are over 600 questions about Michelangelo on WikiAnswers.
There are over 1,000 athlete questions on WikiAnswers.
Wikianswers does not answer your questions. It is people from around the globe on the internet that answer the questions.