zabalex - 9:29 pm on Nov 3, 2011 (gmt 0)
right from the inception of google, it has said that its prime motive is to serve the users what they wanted exactly and appropriately. If someone is serving to bots something else and to its users some other things it can not be anything other than misleading the Search engine BOT. This is what specially google does not like and has said in many interviews that it will not be tolerated anyhow. It has given the term BLACK HAT.
The google spam team is smart enough to detect these kind of things and they will detect it sometime. After so many updates google has shown the world that it can do that very well. Hidden text in no way useful for anyone so it is really not the legitimate practice to come up in SERP.