If you take a look at the screenshots below, you can see the flagged and hidden post is showing in wordpress. Also more people are listed as participating in the discussion than there actually are. These are people who whispered in the topic.
I am on an older version of the wp-discourse plugin but i don’t know if that should be an issue. It seems to me this should be addressed on the discourse side anyway, so the hidden post and whisper authors are not exposed via the API.
Here’s how it looks in wordpress:
Here’s how it looks in discourse: