I looked at a few other websites tonight that help you delete accounts, and justdelete.me looked the best to me. It's been updated somewhat recently, and has a lot more information on how to delete accounts. It also had an easier interface compared to the other sites. I think it's easier to delete an account rather than trying to remember a password in the future. It will also keep me from getting random e-mails inviting me to come back and try the app/service again.
For me, part of minimizing technology involves physical and electronic technology. This website will help me minimize my electronic technology.