I do, it's awesomedave0
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No, you cannot have the letter Ä in a username on WikiAnswers. You will get the error message: "Invalid Username: Only letters, numbers and underscores are allowed!"
By your username and IP address.
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You can make up a username.
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His username is Chris. Here is his message board: http://wiki.answers.com/Q/User:Chris
These represent contributors who never registered an account with WikiAnswers. Thus they do not have a username to display.
Yes, his username is Chris.
Not if you don't want it to.
Yes, that is correct.