sometimes cleaning things is the best way to secure your internet activities
if you have a lot of accounts this would be a good idea
the more less your info is public the secure, private, and seperate your internet life and private life Plus You Don't Want Your Friends To Google Your Username And Find Out Your Brownie Forum Account
You Could Use Sherlock To Find Accounts It Works By Scraping Accounts That Have Your Username
Delete Me And Account Killer Is Great Websites That Provides You A Step By Step Tutorial On How to Delete your Account