They all have different meanings as you can see from the list. It's a different verification as well but that is not important. It's about communicating the meaning, not the engineering behind it.
Discussion
Hmm so my feedback is scrap #2 entirely it means nothing to me. Number 1 idk, but 3 should just be a blurred image/video with a warning popup that it’s been changed and you have to click ok on that message to view
> scrap #2 entirely it means nothing to me.
NIP05 is an effective way to validate if a person still controls the key you thought they controlled. Otherwise, how are you making sure you are still talking to the same person and not an attacker that has taken over that account?
> 3 should just be a blurred image/video with a warning ...
Then everything would be blurred because most images on your feed are just unverifiable as opposed to NIP-94 or 95 images.