When you asked question on this site, you will be prompted if you want to be notified once an answer is made available. Please note that, you can always decline the invitation if you are not interested.
It is perfectly safe to sign up for WikiAnswers.
You can't use "+" in a WikiAnswers question. The only symbols allowed in a question are a period, hyphen, and question mark. Instead, you could use the word plus.
You just press sign out.
no.
Yes, anyone in the world can write an answer to a question on WikiAnswers. However, if you are not a registered user, you are limited to editing categories, writing the first answer to a question, and asking questions. To be able to edit a question, you must sign into an account.
No, a Wikianswers account is free of charge.
WikiAnswers!
You have to sign up for it.
When you sign up for WikiAnswers, you are asked to choose your own username and password; you can personalize it from there during the sign-up process.(See the Related question on how to become a member of WikiAnswers.)
on wikiquestions
Well everyone on wikianswers edits wikianswers, if that's what you're asking.
If you are asking a question and you are using WikiAnswers, it must exist. So it must be real.