Thanks for the answer Miles. Much appreciated.
The problem is that cross promotion (including any links in each casino and links in emails) is – in this scenario – stealing.
That is why affiliates are so upset. Nobody wants to send traffic if that player can be stolen at a future date (whether that future date be 1 day later or 1 year later).
Hope the clarifies things from our perspective.
Thanks again for the help with this answer.