Hate it.
If he didn't have the past he does, it would be one thing. But playing the game for ~25 years and being a fan in general all of my cognisant life, there's just no way I can get behind a player who plays the game the way Matt Cooke does. He's a punk. Frankly, I will never be able to look past the things he does well, knowing just the type of player he's been throughout his career. I think many will feel the same in this educated and grudge holding market.
As for Fletcher, it's one thing to move fan favorites before they're due to be paid (Burns, Clutterbuck), it's completely another to bring a guy like this on. It smacks of having zero pulse of the fan base. Quite frankly, it's embarrassing. With this single move he's put himself on the radar of every single fan who either liked what he was doing or hated the progress. If his team fails to look like a solid playoff team, he very well may have just seen his last offseason with this club.
Foolish signing on so many levels, IMO.