I believe anyone is free to discuss or not discuss whatever he knows. I also believe that the only way to discuss freely anything is not to be put in the position "You must prove that you are not a charlatan" position.
If I recall this started because you suggested in your original thread you uniquely 'knew' something but for the security of bitcoin wern't yet ready to reveal... Now it is simply 'there are some nonces near eachother, that means someones exploiting mining clearly' with out any technical proof or explanation on how it would be possible. You might not have to prove your not a charlatan, but if your going to make an accusation, and even go as far as to allude you know a secret, then you have to prove it has some validity....