I would postulate that more than specific training, there are journalistic (sic?) conventions that you have to adhere to and that you learn during your course of study. I'm not saying that one cannot learn this on their own with some effort, but that most bloggers don't know or don't care to learn it.
To compare it to design/designing/designer wouldn't be accurate. There are certain aspects of design that natural artistic ability and skill covers, while in journalism there are rules (investigation, disclosure, etc.) that must be learned, you're not born with them. I've seen bloggers ignore these (ignorance, refusal to adhere to them, and so on) and some of their end products make me cringe.
Not to say that journalists themselves don't ignore this from time to time, take for example this recent Breitbart brouhaha, but I think it all boils down to the terminology: Bloggers would like to be known as journalists, and journalists would like to keep that distinction to themselves. Each have a case. But I think there is still a need to distinguish one from the other.
To compare it to design/designing/designer wouldn't be accurate. There are certain aspects of design that natural artistic ability and skill covers, while in journalism there are rules (investigation, disclosure, etc.) that must be learned, you're not born with them. I've seen bloggers ignore these (ignorance, refusal to adhere to them, and so on) and some of their end products make me cringe.
Not to say that journalists themselves don't ignore this from time to time, take for example this recent Breitbart brouhaha, but I think it all boils down to the terminology: Bloggers would like to be known as journalists, and journalists would like to keep that distinction to themselves. Each have a case. But I think there is still a need to distinguish one from the other.
(edited to clarify an opinion)