@swift3,
Make sure your username (
which you cannot change, so you may need a new one if this one is problematic) doesn't track back to your name or any username you're known by elsewhere.
For example, someone named Amy Smith who often has a username of TridentLover25 probably shouldn't use a username like AmyTridentLover25.
The site itself won't give you away, but this site is crawled by Google regularly, so it can come up in online searches.