I submitted a couple of feedback posts within a short time frame so I guess that my account was flagged for review. However, there seems to be a mistake with the moderator review message. After submission, I saw the following text on top of the page:
Your 0 was submitted, and will be reviewed by a moderator before being visible to all users.
I guess that '0' should be some sort of dynamic variable which is just not filled properly right now.