The thing about it with Artest (as opposed to Bynum) is that Artest is kinda...sick. I'd bet dollars to doughnuts that he's got no real ill will towards Harden, and probably regrets the heck out of it now. He's trying to do good, trying to change perceptions of him, trying to make it work, despite a team that's constantly changing his role, and his own mental problems. And despite all that he got carried away, did something wicked stupid in the heat of the moment, and he's gonna pay for it.
He reminds me of Delonte. He's gotta pay for what he did, but I hope it's not more severe than a handful of games.