when the use of counterfeit and faulty gas tanks can result in entire families being incinerated, then I reckon it is a matter of consumer safety.
Being able to verify and track the identity of a user/purchaser/hirer will certainly help maintain the quality standards or at least be able to track back any misuse of gas tanks.
Not long ago some idiots used a gas cylinder as an imrpovised explosive devise in a car parked outside one of the most popular night clubs here in london.
ETC Price at posting:
39.5¢ Sentiment: Buy Disclosure: Held