About the only experience I've directly had with tags has been to insert tags for Google Analytics in a couple of blogs. However, Pierre's piece piqued my curiosity so I did a bit of research to learn more about tags.
I found Ingrid Lindgren's writeup in TechCrunch about tags and Google Tag Manager particularly enlightening:
Hi Pierre, I've no reason to play around with Tag Manager as I'm not a digital marketer, but I do wonder whether this new product allows for deeper or easier analytics of the tag effectiveness -- or is it just ease of viewing and managing the tags through the GA dashboard that's the benefit?
While 97% of insurers say that insurance fraud has increased or remained the same in the past two years, most of those companies report benefits from anti-fraud technology in limiting the impact of fraud, including higher quality referrals, the ability to uncover organized fraud, and improve efficiency for investigators.