https://law.stackexchange.com/questions/tagged/united-kingdom contains the warning:
Note that the UK does not have a common legal system across its jurisdictions - consider using [scotland] or [england-and-wales] or [northern-ireland].
Yet many posts with this tag still neglect this distinction, and answerers must ask the questioner or express their confusion about the intended jurisdiction.
Wouldn't removing it teach posters and spur them to choose jurisdictions? From Tom Bolam, Senior Associate (as of 1-29-2018), Fladgate (Solicitors' firm):