I would ask them directly, I doubt anyone here would be able to give you a useful answer.
A post was flagged as being off topic and it was hidden. The person who made the post has a chance to edit it and it will again be public once it’s edited. If it’s flagged again, it will be hidden indefinitely unless a moderator chooses to unhide it.
The reason Discourse (which runs this software) no longer allows people to see hidden posts is that doing so would mean that basically any hateful or insulting content would still be there and there would be little incentive for people to not post something hateful or insulting in the first place. If you have further issues or question with forum moderation, please message me, or forum_moderators, or post in Forum Feedback so that this thread doesn’t go further off topic.