Ford F-150 (2004-2008) :: Ignition Sticks And Kills Starter

Looking at buying this used 2004 F150 and the Seller says it has a problem with the ignition switch; that it continues to run the starter even after the engine is running, which burns out the starter. He's an obvious layperson and doesn't know much about mechanical stuff (or he's pretending, IDK).

This sounds very strange to me, because if it's some kind of mechanical defect/factory defect, it's something that Ford should have identified, documented, issued a recall maybe, or something, yet when I research the issue the only thing I find is a problem with ignition switches that cause fires in model years that end in 2003 (not 2004). Other than that I find no documentation.

I wonder how accurate the Seller's description is, or maybe it's defective due to some other reason, like maybe a car thief shoved something into the ignition and damaged it, or possibly corrosion. Or maybe it's simply "sticky" and some spray lubricant would fix it.