Whether you love or hate him, he is discussed ALOT! Which to me means there is a big interest in him, one way or another.
I am not sure if all these hate thread creators realise they are actually strengthening his popularity.
And this is where and when you know good writing is being done. If a 'minor' character can strike a cord with someone, any cord, you know the writers are doing their job. If he was an unnoticed character, then they wouldn't have used him in this new game. But because he has so much buzz about him, regardless of what kind, it shows that people pay attention.
If you love him in game, there's a reason to use him. If you hate him, there's still a reason. It means the writers, voice actor and art directors have struck a nerve with you, so job well done.
I think had there not been so much discussion about him, they probably wouldn't have used him at all. So in a way, I like to thank the haters just as much lol