nabla: Forms of cheating are probably more widespread than we realize too!
I think you would hear more of an outcry over what you have uncovered if other people were not doing the same thing themselves, even if maybe to a lessor degree.
For example, I was recently involved in a couple of games with a certain player, and we were both making moves consistently one evening, and in one game I offered them a double. I was able to see that they were viewing this game, but they never made a move, and then they were off the site, with their last action of "viewing this game".
Now, coupled with this recent claim of cheating fresh in my mind, I wonder if this person has taken this game to a program to determine if accepting a double is the right move or not? It seems quite obvious to me that is what has happened.
So, I am sure in my mind that even if people are not cheating by playing every move by the aid of a program, that many people are surly using these aids to assist in certain tough move situations or like the one I just described