freefloydlandis.blogspot.com is saying that the reason it did come up historically is that they recently reduced the ratio from 6:1 to 4:1 and that F'Landis tested in the 5ish:1 range. If he had, none of the previous, anonymized tests would have been flagged.

I know it's just some random blogger, but he has more coherent information up than any other place I've seen - despite his clear biases.