I don't like my username, and don't want to post a review under it.  I thought I was going to have to register a new account. Then I saw I could create aliases.  I'm trying to submit my first review and I don't see an option to submit it under my alias.  Can you submit a review under an alias?

ask Admin to change your username... I did that recently, and they just asked me to submit three choices.. whammo... new user name!

Hugs,
The Serene formally known as Butterfly

No you can not.

Actually, if the change request goes through Admin, any posts and reviews under the old name will change to the updated one.