As far as I understand it, he was believed to be a Reddit infiltrator. His intentions may not have been outright malicious, but his comments and post were too soy; he attempted to try and change the environment and atmosphere of the forum by complaining about how "racist" the users were, whilst also saying that he hates whites and that they are all fakecels. He was too antagonistic, making it very clear to the mods that he was making no attempts to try and fit in with the forum culture. As Komesarj said, more than half of the forum are ethnic. The black infiltrator tried to make it seem that the forum was just full of racist white supremacists, a talking point that IT and soy mainstream media like to try and push.
It seems that he was also from Looksmax. I do not know what he posts over there but Caesercel made the comment that, after reading his posts, he knew that the user wouldn't last here. That is all I know. New users cannot try and turn this forum into a censored safe space for so-called protected groups. We are all equal here. The user made assumptions about us that are more akin to Reddit users, funnily enough.