If you are doing something naughty that results in lowered PageRank, should you tell Google that you addressed the issue? A Crea8site Forums thread discusses this issue: a webmaster notes that his site has lost PageRank, probably due to what he believes is selling text link ads. Now that he stopped selling these ads, should he tell Google so that they can restore the PageRank?
Yes. According to JohnMu, if it now complies with Google's guidelines, it's safe to ask Google to revisit the issue.
You may be subject to a manual review at that point, but you'll probably be fine if your site follows Google's rules.
Forum discussion continues at Cre8asite Forums.