the thing is youre getting out of proportion by saying that he is a bully when he is just defending himself, not to mention that even if he had info on the batman doenst means he will suddenly go "oh he beats criminals, he is a good guy" not knowing the reasons he did so. he could very well be just another gangster in a territory war, after all he is a reporter and he should know that such thing happen in a corrupt city like gotham. not to mention it was normal humans that captured him and started making experiments with his body "for the safety of the nation". good thing he is invulnerable.
yes he got batman and inquired him through forced interrogation, but he did it first of self awareness that there are all kinds of people out there going after his skin (self preservation, survival, your call), and secondly because the so called boxes were supponsedly responsible for the various incident in the city and he needed to know what was happening asap. thirdly, he is pissed, or are you saying that superman has no right to feel emotions?