In order to change the email associated with their accounts, users have to perform the following steps:
1) Go to account settings:
http://www.tomshardware.com/community/account
2) Under "Related Accounts", they must click "Add account"
3) From here, they must register and confirm a new account.
4) They then must log in with this second account, using the newly registered email.
4A) This will result in them being logged in to the original account.
4B) The dummy account is never used again and becomes inaccessible, despite still being, for all intents and purposes, present and existing in the database.
5) Then they have to navigate back to account settings
6) Under "Related Accounts", they need to hit "Edit" and choose the new email to act as the main email.