That's how it inspired me to create this app really. I often do this to important text subconsciously so one day I asked what if i can automatically save that... It feels intuitive and avoids the extensions.

With that said, you can disable this double copy trigger easily, it's an menu bar option if you right click the icon. Also there are other ways to capture: share sheet, service menu, drag and drop into the app icon or into the menu bar icon.

On ios, it doesn't have this double copy magic obviously, so it just functions as a normal pretty read-it-later app. Hope that clarify things!