Honestly, we have now more than 100 discussion about this alert. This is noting, just for spammer. I truly can understand it is quite annoying to see that message at that point of level. But due to some spam attack (on last some months), any person can get this alert. You may read some more details in this document SCN Pre-Moderation Support FAQ
You can't believe, I saw a discussion where a moderator was complaining about the same alert and her post is gone under her own moderation. Here it is Moderator's own content being moderated as "newbie"?