@Hellis (Because I respect you and think you'll listen to what I have to say, whereas others might not.)
First, let's define racism, because that's become just as much an insult to someone's character as it is a word that actually means anything. Let's use the dictionary definition, I think we can all agree that the dictionary is a fairly unbiased piece of documentation, yes?
A. A belief that one race in particular is superior to others, or inferior to others.
B. A policy or doctrine that discriminates on the basis of race.
C. Hatred or intolerance of other races.
What Gwazi has been posting is tasteless humour. He in no way, shape, or form, has expressed a belief in the inferiority of a race, a desire to create a policy or doctrine that discriminates based on race, or expressed hatred and intolerance of other races. By no stretch of the imagination do I like his humour (seriously? A slave? In chains?
Seriously?!) but I don't have to resort to calling him a racist to show discontent for his humour. In every thread in which he has expressed a genuine political opinion about race, he has always professed a desire for equality between all races with no prejudices or discrimination barring the way for anyone to accomplish whatever it is they wish. If anything, he's mocking slavery and suffering in particular. He's mocking black stereotypes. It's no different than if I made a joke, like, say...
"What's the difference between Hitler and Usain Bolt? Usain Bolt can finish a Race."
That joke is offensive as fuck and I wouldn't use it in casual conversation with people I don't know well. On the other hand, it does not in any way, shape, or form, imply that I view any particular race as lesser than myself--it implies that I'm laughing at the macabre nature of the joke. It's a play on words. It's just as cruel and brutal as making a prison male prison rape joke, for instance.
If anything, you can express disgust for Gwazi's actions because they are inflammatory and offensive as shit. You don't have to label it as racist to be disgusted by it. I'm disgusted by it, so therefore I'm not engaging it directly.