The article is mostly about the pound in general (with no mass/force distinction) due its historical treatment as a weight. Perhaps the numerous incarnations of the pound should be in a generic Pound article, and Pound (mass) should be in a similar category to any other unit of mass in a specific system (in this case the Pound (mass) is a member of the "FPS gravitational" system of units. There should be a link to the Pound (mass) article from the Pound article of course, but it deserves no better treatment than the lb (of the "FPS engineering" system). There is a table of the FPS systems at Pound-force and at Slug (mass) which tabulates various FPS systems. It's a little less clear than it used to be; what was simply called "FPS engineering" is now "Engineering, absolute", and the "FPS gravitational" system of units is apparently clambering for some credibility by calling itself the "Engineering, gravitational" system - which of course has no use in engineering due to its offence to Newton's 2nd law. Where did the gravitational system come from? Maybe some reliable sources are in order.