@Moxie, thanks for quoting my posts as a decent reference.
About the discussion you are having with
@Federberg, there is something I would like to post for a while (even if exactly you two probably are quite aware of my point).
One Nadal trait that drives other player's fans crazy is that he knows perfectly well when to attack and when to play "neutral" (that is, grind, if you will). All players do that to some extent, some do it well, some not. It is a fundamental part of the game of tennis. There are two moments when it is wise to "grind", when you don't feel good about your own shots, and when your opponent is in self-destruct mode. Nadal easily goes from one extreme to the other with an irritating sense of opportunity. Hardly a match passes by that at some point he does not earn an important point "grinding". However, in the same match maybe he would win three times more important points with fearless attack, but it doesn't matter, because the selection bias will make the other players fans remember just those "grinding" moments. I can go as far as saying that this even influenced Federberg's choice of words when he wrote "Watching Rafa grinding everyone to dust". It is just part of the picture, but one that sticks (for the ones on the receiving end).
Obviously all players are well aware of that and other guys do it well too. Even Federer (who used to be as stubborn as a mule) became a good practitioner of this art -- something that DarthFed coined as "vanilla Fed", which is frustrating to watch (when you want to see a full display of TMF), but pays dividends on the long run.