Google Penalty On WWW Revoked But Remains On Non-WWW

Google Penalty On WWW Revoked But Remains On Non-WWW
A WebmasterWorld thread has an interesting discussion around how a webmaster said his manual penalty was revoked on his WWW but remains on his non WWW.

The non WWW is 301 redirected to the WWW and the WWW is set as the preferred domain in Webmaster Tools.

Have you ever seen this case, where the WWW vs the non WWW don't have timed penalties properly?

by Barry Schwartz