I dont' think you'll find anyone on the thread really condones the actions of the pilot mentioned..
What I don't consider professional is the fact that someone can't approach the pilot or operator in question and question him directly on his actions before running off to the feds. How do you know that there wasn't a (God forbid if there was) a good reason for his approach?
How do you know the pilot in question already regrets his actions?
You don't cause you haven't talked to him.
Sure if he doesn't change his ways and something will happen,
Why does it have to be the CAA that talks to the pilot first? Did you ever consider talking to the operator?
The term professional gets thrown around loosely these days I believe as a term to hide behind to justify some plain nasty behaviour...