I like them and agree with another person there needs to be a way to remove them if sensitive info being copied – maybe by 3D Touch on the clipboard item for more options like remove?
The other thing that annoys the hell out of me when lying and pasting like your examples is that it doesn’t select the whole email address or URL. If it’s a wire with no spaces I’d like to see it select the whole address. How often would you select just www or first name in those situations. I’d love to see a solution to this. Maybe a setting to change the default select behaviour?