I shutdown properly every single time and I notice the number of Unsafe Shutdown Count is the same as Load Cycle Count and only for my Hitachi drives. The 1TB WD Black does not exhibit this problem.
I Googled for over an hour and could not find any relevant information on this particular S.M.A.R.T. value.
*edit* – Ok, I think I know what it means now, C0 Power-off Retract Count
or Emergency Retract Cycle Count
(Fujitsu) - Count of times the heads are loaded off the media. Heads can be unloaded without actually powering off.