Yes
Anyone can use WikiAnswers that knows about WikiAnswers.
Yes. Anyone can read and answer the questions on WikiAnswers.
Wikianswers is a public community. Anyone can ask questions and anyone can answer them. If you have any question you can post it in wikianswers and someone who knows the answer to your question would respond.
Community Assistants are paid employees. Anyone else that contributes to WikiAnswers is doing so voluntarily.
Yes, some people do seem to hate WikiAnswers.
yes
You can't ask a particular person on WikiAnswers, but you can put your question on WikiAnswers and anyone who comes on the site can answer it.
WikiAnswers has Supervisors, which fill the role of sysops.
Anyone can answer questions on WikiAnswers. There are no bots here.
anyone from 13 or above.
Yes, I do
The 'Community Q&A' is the part of Answers.com, which is WikiAnswers, where anyone can ask anything, and anyone can answer anything. Community Q&A is the same thing as WikiAnswers.