If you publish an article else where and then post them here, Hubpages views it seriously.. flags them as duplicate, when you unpublish something your scores go down too .. so I guess you are getting it from both ends..
Hubpages likes only fresh content.. so write fresh unique content.. read the FAQ that will help... Best wishes!
Here is the FASQ on this
Your Hub's content has been detected on another site and has incurred a HubScore penalty as a result. You are allowed to post content on HubPages that is also published elsewhere, like your own site or blog—but you cannot place any promotional links on that Hub. Only you can see the alert message at the top of your Hub. A pattern of publishing duplicate content will negatively affect your HubScore, as we prefer to reward authors who publish content unique to our HubPages. It does not matter whether or not you are the original author of this content.
If your Hub is truly unique to HubPages, you can request a review of the Hub by contacting us. An exception is typically granted only when quoting is done to a minimum, or some commonly-used, public domain, or historical phrases have triggered the duplicate content detector. If your Hub has been certified as original by an administrator, a notification signifying so will appear at the top of the Hub. Once certified as original, no HubScore penalty will be applied.