"Please don't pick the most provocative thing in an article or post to complain about in the thread. Find something interesting to respond to instead."
_in which it is implied capitalizing B in black is both provocative, and that this kind of provocation is not interesting_
It is clearly provocative, as it obviously provoked the commenter, and it isn't interesting. A simple Google search can provide the rationale for it, and focusing on something so trivial is unlikely to provide more thought-provoking, intellectually stimulating discussion than the actual article.