It is probably because although you have answered many questions, they have not been of the highest quality or are incorrect.
Nothing, because it was you that applied for it, not the people answering WikiAnswers questions.
It really depends what position your currently at. If you are at 90 then you have ways to go, in order to get even close to being #1.
Start answering questions or help anyone that needs it if you are in a position to do so and are aware of the need.
People should answer honestly when answering interview questions regarding the reason for working at a particular company. They should also mention how they heard about the position and what grabbed their attention.
I could not speak for others, but with my changing position on WikiAnswers I do, and I always announce these updates in positions. I always keep in mind though that the purpose for WikiAnswers is to ask and answer questions, not just to have an amazing profile (it's okay if you do both).
You can not nominate a supervisor for the position of a Premier Answerer because you can't be a PA and a supervisor at the same time. Supervisors are only able to nominate regular users for either the position of a PA or supervisor. PAs do not get any additional tools like a supervisor does and it is just a badge to show that you have made a lot of great answers to the site.
The duties for the position of grants database assistant include data entry of grants into the database and checking current records for accuracy. The assistant is also responsible for answering questions from customers using the database.
A lot of supervisors find it useful to have a mentor to help them get the most out of their new position. It is not necessary, but it is a good idea if you have any questions about the new powers you get on becoming a supervisor.
A Premier Answerer is completely different to a supervisor; these users are selected due to the quality of their answers, and not their general contributions towards the site. However quite a few Premier Answerers are also offered a supervisor position, but turn it down. You cannot be both a Premier as well as a supervisor.(See the Related questions.)
This is not a question it is a homework assignment. WikiAnswers does not do your homework for you but will help you if you have SPECIFIC questions relating to it.
Because I have previous qualifications of answering questions (See: Previous Work Experience). It is also something I enjoy and feel confident doing. I bring a positive attitiude to each new question and try to always find ways to improve my question-answering while honoring the tried and true techniques.
No, you don't. Being a Supervisor is a volunteer position.