As the title says, is the windows-8.1-preview tag really needed, especially as we're near the release of the Windows 9 Developer Preview (or beta, whatever it is).
The Windows 8.1 Preview is over a year old, and is no longer available for download from Microsoft. Any sane developer would use a full Windows 8.1 installation, which is up-to-date, and not the Windows 8.1 Preview which is no longer updated or maintained.
Shouldn't this tag be purged, or at least merged into the windows-8.1 tag? If not, why?