Yes! True!
But the story is much bigger than that I guess.
If I write highly controversial stuff that shouldn’t be said/posted, it get’s deleted, but everyone can still see the content because of the previous version. I think in extreme cases this is a problem.
It’s just that on reddit I always thought it’s annoying when someone deletes a post or his account because I could just go to a mirror site and look up the comment.
Test