Yes, but only if you are a Supervisor.
(See the Related question for more information about protecting a Q&A.)
'Protect' a Question via the Yellow Padlock A question on WikiAnswers is protected if the answers of multiple contributors turn into a debate, if the answer is vandalized repeatedly, or is controversial; among various circumstances. First of all, the option to "Protect" (and "Unprotect") the answer to a question - the yellow padlock - is onlyavailable to Supervisors and Community Assistants on the site.How to Protect if you are a Supervisor:Click on "Protect" to the left of the page - under "Question tools."What if a non-supervisor feels that a certain question or answer should be protected?Please contact a CA or a Supervisor to verify. A user may also contact a Supervisor or CA if valid alterations need to be made to the protected question or answer.Alternatively, email wikianswers @ answers.com (remove spaces) to make the request. If the request is deemed valid, the pertinent Q&A might certainly be protected.
If you mean a question that is trashed it is to protect users from questions that might be considerecd inapproriate, and since there is no reason for it to be answered there is no reason to see it.
Stop cheating and putting your homework question on wikianswers, stupid.
Yes, you can submit a question without an account on WikiAnswers.
No. If you are asking about the "code" that must be entered to answer a question without being a logged-in member, that is to protect wikianswers from attacks by spambots. Before it was implemented there were a hundred or more "answers" every day that had to be deleted because they were links to dangerous websites.
Yes, WikiAnswers is a Question and Answer community.
The question you asked is inappropriate for WikiAnswers.
They are here to protect wikianswers, and block vandals/spammers/cyberbullies from this site.
this question
Any time is the best time to ask a question on WikiAnswers.
You can't answer answers on WikiAnswers, or anywhere for that matter, unless there is a question in the answer, where it would be classified as a question.
The maximum question length on WikiAnswers is 200 characters, including spaces.