Unfortunately, wherever there is an open source and a lot of user traffic, there is spam. Seeing that there are over 5,000 categories here, there are a good deal of topics for spammers to abuse. There are many kinds of spammers that try to get a foothold on sites of this type.
WikiAnswers has set precautions in place to help prevent a good deal of this spam. If spam does get through, the vandal patrol and the supervisors weed it out. All the same, there is a lot of ground to cover. If you come across anything that you feel is spam, feel free to report it as abuse. It will be reviewed. If it is spam, it will be removed. Spam offenders are blocked from the site.
See the related links for more.
No WikiAnswers does not spam.
Users who post spam on WikiAnswers will be blocked from editing.
On a website called Wikianswers.
Yes, it is. You won't receive any spam on Wikianswers.
Someone who posts spam would be a spammer. WikiAnswers is not the place for spamming.
Questions about vandalism and spam and copyright and sexual themes
No. This is regarded as spam and violates the rules.
Probably because you haven't told your mail program that WikiAnswers is a trusted site.
You should delete a discussion post on WikiAnswers when there is inappropriate information or spam within it.
There are various email addresses associated with WikiAnswers, which means some may have been identified as SPAM. To remove these email addresses please contact your email provider.
Brands can have account on WikiAnswers. Anyone can have an account on WikiAnswers. You cannot use WikiAnswers for spam; it is to be used to only to answer questions for people or ask questions that people may want to know.
Impossible...or get someone else to do it for you. But they would have to log in!