Not confused at all.

AdWords Content Match is distinctly separate from AdSense. The former is a system for placing ads; the latter, for publishing them.

The OP's question deals with the former, not the latter. Furthermore, his question mentions nothing re. Content Match, with or without site placement; rather, he was simply looking to find the reason for a given ad/keyword was not being displayed, a question which has already been directly answered.

freeleads post is akin to responding to a question re. a Windows machine to just switch to a Mac.

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