If you click through the original Show HN posted link at the very top of the page, there's a section on the Introducing Optery page titled "How Is Optery Different From Competitors?" with differentiators from DeleteMe, OneRep, PrivacyDuck, and PrivacyBot there.

If you already have a DeleteMe subscription (or any other competitor opt out / removals service), you can sign up for Optery for free, and use the Free Basic account results to keep them honest and check their work.

In our experience, we typically find 20 - 40 profiles DeleteMe has missed and left exposed. If you do this, please send us a message and let us know what you find.