There may have been something in the post that caused it to be moderated. Some words that tend only to occur in spam posts automatically cause the post to be flagged for moderation; it's not rejected outright, but won't show up until a moderator approves it. "directory submission revenue increase" doesn't sound like anything that could be on-topic for this forum anyway. (I'm not quite sure what it means, to be honest, but it doesn't sound like it has to do with the ODP.)