Update: given that everyone agrees here, and no-one has objected, the questions have been re-tagged using the plan below

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I propose that
* Questions about mouse/scroll wheels are re-tagged to use the [tag:mouse-wheel] tag
* For questions about installing Python packages using wheels, use [tag:software-installation] + [tag:python]
* Re-tag the two questions about the wheel group to use the [tag:groups] tag instead