MM
I actually agree with you but am pointing out a fact that for use of a better term there is a lot of grey and for the sake of confusion the CAA need to be more specific.
We all know the spirit which is that the CAA do not want PPLs setting up mini air taxi operations and are trying to accommodate cost share for genuine private flights with friends but we are in a regulation nit picky society.
It always amuses me the amount of ways people try to get around the law to make money.
The most common one being dial xyz to win a luxury holiday for two calls cost y per min. Simply answer the following questions. which is the tallest a man standing upright, a mouse or a miniature poodle

So do not blame or look down on people who try to operate to their advantage within the law it is not them at fault but the law.
And yes those who cut it fine may find themselves as test cases on that law in the courts.
Pace