Not everybody consumes Stack Exchange content the same way.
Some people may want to subscribe to tag uyghurs and be notified by email whenever a new question on the topic is posted. Sure, searching for uyghurs is:question on Politics SE would accomplish the same. However, if one is interested in, say, 100 topics, who has the time to perform such searches 100 ...
No - This tag does not currently add value
First off, why do we have tags? The Help page lists two uses:
Tags are a means of connecting experts with questions they will be able to answer by sorting questions into specific, well-defined categories.
Tags can also be used to help you identify questions that are interesting or relevant to you.
Although I ...