So, this sentence was posted:
exampel:
"It is wrong to kill your neighbour when he comes to borrow sugar" i would have no problem teaching my eventual kids this...

"It is wrong to kill your neighbour when he comes to borrow sugar, unless it's the nigger across the street" I would say that would be wrong to teach...
Now, I do understand why the word nigger should not be used, however, I dont think anyone can accuse me of being intolerant towards black people in the above example...

Words in itself are not hateful or diminishing, it's the context where the words are used that makes them what they are, no?

I really did not see a reason for this official warning. Some mod/admin care to elaborate?