I have said that they have a strong negative bias. Whether the underlying news is positive or negative is completely irrelevant. Relevant is that they make things much more negative (= less positive) than they are.
But how does that bias manifest? The only thing you said was that they "ignore neutral or positive stories", and that doesn't seem to be true.
But how does that bias manifest? The only thing you said was that they "ignore neutral or positive stories", and that doesn't seem to be true.