It seemed to me that they were publishing negative news articles about Bitcoin non-stop while the price was climbing. I have a Google News Alert for Bitcoin, and (if I remember correctly) almost every day there would be some negative headline about it from Bloomberg. I then looked up what kinda website it was on Wikipedia, and it turns out they make up 1/3rd of the global financial data market. That kinda confirmed their motivations for me.
I might still be wrong of course, perhaps I should have made more clear that it was my opinion and not really a fact. To me it was like a fact, but now that you make me think about it more objectively, I realize that I can't really say for sure.
Some of the articles you mention are actually op-ed pieces that are published on bloomberg.com. Those types of pieces allow the writer to express their own opinion, whether it be positive or negative. They should not be treated individually or collectively as the opinion of the company, however. Sometimes it is unclear to readers that a piece is an op-ed, so I can see how the viewpoint might be attributed to the company. I can assure you though, there is no company-wide secret agenda to discuss it negatively. My own personal opinion is that the community does not do a good enough job of educating non-programmers about the details of the ecosystem. Here's an example of a good discussion (my personal opinion):
You say this as if it is fact. Care to expand on why you feel this way?