I am aware of this. I would have to be incredibly stupid not to be aware of it.

Do you anticipate ever finding a way to reliably distinguish it from random chance

I can reliably distinguish it from random chance, but by hypothesis I just can't tell you about it. I can get evidence, just not communicable evidence.

I think maybe every time I post about evasive psi I should include a standard disclaimer along the lines of "Yes, I realize how incredibly dodgy this sounds and I also find it rather frustrating, but bringing it up and harping on it never leads anywhere."