Relache has explained it perfectly.
Some people confuse "flagging" with "moderating". Hubbers can only "flag" a Hub, and all that does is ask HubPages staff (moderators) to look at the Hub.
If the HubPages staff moderates the Hub and decides there is a problem, then they may unpublish the Hub. If they decide it's OK, you will never know your Hub was flagged.
Your poetry is fine, but your English is poor in your factual Hubs, so it's quite possible they will be flagged and unpublished.