Some leaks are not "leaks"
I have been allowed in the past to show early with permission.
As a site owner I would see other sites leak and feel the same way Allen does wondering why the manufacturer doesn't take action. The answer is they do. For a few, sampling was terminated, at least one made monetary reimbursement when product was not returned (not me), and absolutely nothing be done with constant abuse (coolaler).
John Lam snuck into an event and took pictures then posted them violating an embargo on that product. He was black listed by Asus to attend the events happening, we watched as he was told to leave. I am sure Asus has not forgotten this. I use this example as he is an known overclocker and his actions had instant results.
Freecableguy broke NDA with Intel, XS had an event that he attended and was denied entry into JF3.
Allen speaking up might prevent others