WHAT DOES "REHABILITATED" MEAN?

Looking back at much of the things that have been posted on this website over the last two years, dating back to the time period when a long term relationship began falling apart. There has certainly been a lot of anger. 

I see the words of a man who was in an incredible amount of pain. A man who was looking for a target to blame for that pain.

And all I can think of is the scene near the end of The Shawshank Redemption when Red is finally released from prison:

"Rehabilitated?..

I don't have any idea what that means... 

I know what you think it means...

To me it's just a made up word...

There's not a day goes by I don't feel regret. Not because I'm in here or because you think I should.

I look back on the way I was then. A young stupid kid... I wanna talk to him. I wanna try to talk some sense into him. Tell him the way things are. But I can't... I gotta live with that.

Rehabilitated? It's just a bullshit word."