Tags are what WordPress calls is keywords. I attach a small number of tags to every post to help people navigate between content with the same keywords. Tags may be people (David Gauke say), organisations (The Howard League, Revolving Doors Agency), themes (women offenders, homelessness) or specific items (heroin, cocaine, ROTL). If you’re looking to research a particular issue, they can be invaluable.
The 2015 statistics on Alcohol in England report a continuing reduction in our use and abuse of alcohol as a nation. However, it also makes very clear the unprecedented pressure that our over-use is putting on the health service with more and more hospital admissions linked to alcohol use and abuse.