They can, but they don't have the ability to do reverts and block or warn users. It would also seem suspicious if someone was constantly deleting answers.
If an answer is inappropriate, by all means please remove it. But don't forget to report it to a supervisor, or to post in the community forum in the 'Report vandalism and abuse' sub-forum.
There is no way to completely eliminate vandalism from wikianswers, but if you do see vandalism, you can report it on the community forum.
If an answer is a piece of vandalism, please do remove the answer or message a Supervisor to deal with it. Even better, try and answer the question correctly!
Spamming is a type of vandalism, but not all vandalism is spam.
Vandalism/spammingSoftware glitches
WikiAnswers feels very strongly against vandalism. Vandalism is cause for warning, and possibly blocking, whether temporary or permanent. Vandalism ruins the site for all the legitimate users that are interested in some answers. If vandalism is found, please click 'Report Abuse' in the top right hand corner of a question. You may also post in the 'Report Vandalism and Abuse' forum.
Vandalism in general is bad because it is destruction of property that isn't yours, and could lead to serious consequences.Vandalism is bad because it is an intent to ruin WikiAnswers as a Q&A site, and is destruction of 'property' that is not yours, so vandalism isn't tolerated on WikiAnswers and is bad.
Questions about vandalism and spam and copyright and sexual themes
Please report all Message Board posts to a Supervisor via the Community Forum (Vandalism Subforum) or the Supervisor's Message Board/Email Address. You can also email WikiAnswers @ Answers.com (remove spaces) such reports.
1 correct spelling and grammar mistakes 2 recategorize questions that are misplaced 3 remove any vandalism or spam that you see in an answer
Because, it might be consider vandalism or not enough information or the wrong answer.
Every visitor to WikiAnswers can help catch and fix vandalism. One of the most effective ways to catch vandalism is by watching the live changes going on right now: click "Recent Site Changes" in the left toolbox when you're signed-in. Many people choose to take responsibility for watching for vandalism in a specific topic. Some become the official "Supervisor" of the topic.
The History pages are very important for tacking vandalism.