According to some blogs on the internet blogs the low PageRank people have gotten because of they write paid post, maybe turns our to be a bluff.

Many webmasters and blog owners have said that they seen a glimpse of their former PageRank when they checked for PageRank some days. So maybe Google just put a smoke cover of the PageRank and its still there until they know what to do with it.

The funny things when Google pushed down all of the people selling links to zero they did not loose their positions in Google they just got PageRank 0.

Google has not given any specific answers yes on how you can get the PageRank back or if you ever can. This thing just adds on to the mystery of PageRank.