Sometimes I post a comment that replies to a different post than I had intended—subsequently deleting it and pasting the message into a new comment—or start a thread in which I ask a question that I then answer myself, so then delete the thread.

In both cases, it’d be helpful to have a toggle the visibility of deleted posts and comments.

As viewing comments of other users that were deleted, but still have replies, is sometimes informative, my suggestion just refers to one’s own deleted posts and comments on their profile page tab.