The new deleted post notice for deleted posts (non spam) reads (emphasis mine)
This post is hidden. It was deleted 2 months ago by....
I don't understand what is the reason to say "This post is hidden". status-declined
This text is seen in the notice applied for questions and answers irrespective of the reason.
The purpose of the notice is to let viewers which is not something explicit. But it has been made clear in many ways it is hidden.
- Deleted posts are visible only to users with a reputation level or to the author of the post. This is clear in the privileges page for Access to moderator tools
You can...
View deleted posts
Cast delete and undelete votes on questions Access moderator tools
Edit tags inline
A notification in reputation icon is also sent when this privilege is gained.
The colour of the post makes the distinction. A deleted post is in red colour and a post which is not deleted is white. So the distinction is very clear.
It is expected that users who have reached 10k reputation earn some sort of experience to know that it is deleted post. Even help center article for moderator tools privilege considers it them to be one of the most experienced users of the site.
The post is also not hidden. For questions and answers which are not deleted through red flags are visible to everyone with access to moderator tools just under the notice.
So I think it's incorrect, repetitive and to add "This post is hidden." It looks like meta commentary. I propose it should be removed
The posts which are hidden are actually deleted through red flags. We have to click on revision history to see what was the post.
For spam Flag deletion notice:
For posts deleted as spam and rude flags, notice is as follows:
This post is hidden. It was flagged as spam or offensive content and deleted 5 months ago by Community♦.
Almost the same content is written just under the notice.
This answer was marked as spam or rude or abusive and is therefore not shown - you can see the [revision history](link to revision history) for details.
Previously red flag deletions only said deleted by Community ♦ because it was clear in the post it is deleted as spam or rude or abusive.
Only change is the notice doesn't contain link to revision history.
Adding the post is spam or rude or abusive looks like redundancy in the notice. What is the reason to add it twice?
We can reword the spam flag deletion notice to remove repetitive statements.