Tags are keywords. I put tags on every post to help you find the content you want. Tags may be people (Dominic Raab, say), organisations (The Howard League, PRT), themes (women offenders, homelessness) or specific items (heroin, racial disparity, ROTL). If you’re looking to research a particular issue, they can be invaluable.
Back in the 1980s the answer to everything was 42. Douglas Adams’ joke “ultimate answer to the ultimate question of life, the universe, and everything”