Actually, BuzzFeed aside garbage reporting have also decent investigations journalism as well https://www.buzzfeed.com/investigations
I know BuzzFeedNews is different than BuzzFeed.
I know I used the formal capitalization of the specific site BuzzFeed, but it is a pretty good phrase if used as buzz feed. "Journalists" that try to make a story out of "what's the buzz" is more of the underlying point. That's just an aggregator. There's not complexity to the story that a journalist has pulled together. There's no getting a feel for the person being interviewed to feel if they might have more info to be pulled out to expand the story.
Having said that, there is a time and a place to a feel for the buzz, and places like BuzzFeed are perfectly adequate at doing that. But to confuse a buzz feed as a piece of news/journalism is just insulting to journalism.
Yay! Journalists that do nothing but build a story around Tweets is not journalism. That's BuzzFeed. The fact that legit news sources decided to follow BuzzFeed is just a very sad comment on the state of affairs we live in now.