Not usually - though your computer may remember your log-in so you don't have to re-type your username and password each time you visit.
The deletion log is a log of all questions that Advanced Supervisors have deleted from WikiAnswers.
It is a guest on WikiAnswers who did not log in
If you are an anonymous contributor at wikianswers, you participate in wikianswers but without a wikianswers account.
No, WikiAnswers does not have a log in API like Google or Facebook, so you can not use your WikiAnswers account to log on to other websites. Websites owned by Answers.com may allow you to log on with a WikiAnswers account, but 3rd party websites will not. If you see a third party website asking for your WikiAnswers password, do not give it to them - they are most likely trying to scam you out of your account.
It's more of a matter of preference. Lots of our users remain signed into WikiAnswers indefinitely whether they are currently active on the site or not. Some users prefer to log in and log out as they are available because they share a computer to access WikiAnswers. If you are on a shared computer, it would be wise to log out of WikiAnswers when you are finished. If you are the only, or maybe even primary, user of the computer you use to access WikiAnswers, it really does not matter if you log out when you are done.
No, You cannot log on to Facebook from WikiAnswers. You can sign into WikiAnswers using your Facebook account however.
you don't have to, I didn't, you can just remain anonymous...
Wikianswers' servers...
Yes, Chris Whitten is the founder of WikiAnswers and he still has an account on WikiAnswers.
Chris Whitten, the founder of WikiAnswers (then FAQ Farm), still contributes on WikiAnswers. He sold the name WikiAnswers to focus on Answers. He is still the founder and still works day to day on this site.
You can. You have to create a user name and password though, just like an email account. Then you can sign in!
It is currently unsolved. (i am seaqueen2343 on WikiAnswers, just didnt log in =) )