Re: Quantify losses...
Theft of revenue stream is still theft. Ask the Cable TV services.
Here's a thought: If your neighbour starts piggy-backing your paid-for TV channels, shouldn't he sub-up for a share of the costs, or don't you care on the grounds that "you still have the TV program"?
We must agree to disagree. Once someone starts playing the game, their "wouldn't have paid for it" rings hollow, and is irrelevant anyway. Theft.
In my opinion.