So long as you believe that polls are meaningless, you can also believe that all the attacks on her did nothing to weaken her appeal to the country.
I wish you well in that -- I won't even argue the point with you. If she enters the race, we'll see if you are right. I hope you are.
Meanwhile, you are in for a rude awakening if you really believe that the media wont' say anything bad about Sarah Palin because they already did it before. I bet they have even new smears ready. They won't be any more truthful than the stuff being thrown at Perry, but it will need to be refuted nonetheless.
Her latest attacks on the GOP is also serving their purpose quite well. I also believe they hope she enters the race because it will cause incredible chaos among the Conservative base between her, Perry and Bachmann. Romney could pull another 2008 and sneak in the back door.