For starters, FAIR (Fairness & Accuracy in Reporting), a left-wing watchdog with Progressive right in their website title, denounced BuzzFeed News' coverage of Obama during his term as "almost uniformly uncritical and often sycophantic," and even "creepy" for literally having only one negative article about him in their assessment out of one hundred random samples from Google (though they specifically call out the majority assessed were News Division, not BuzzFeed the tabloid). Their top tech reporter, Ryan Broderick, was fired after plagiarizing for almost a decade, and basically the entire time he was working there. And publishing the Steele Dossier as though it was actual news at first, even though even Wikipedia says many of the statements in it were false, was also a low point; even the Washington Post in 2017 said it was bad journalism. So bad actually, that the editor of BuzzFeed felt the need to publish an opinion piece in The Atlantic today (yes, today, 6 years later) defending his actions. Another Pulitzer-prize winning journalist (Barry Meier) called the whole event a "media clusterfuck of epic proportions."
FAIR: https://fair.org/home/buzzfeeds-obama-coverage-is-99-percent...
Broderick: https://www.buzzfeednews.com/article/markschoofs/a-note-to-o...
Washington Post: https://www.washingtonpost.com/blogs/erik-wemple/wp/2017/01/... and https://www.washingtonpost.com/news/the-fix/wp/2017/01/11/th...
Atlantic: https://www.theatlantic.com/ideas/archive/2023/04/ben-smith-...
Meier: https://bookshop.org/p/books/spooked-the-trump-dossier-black...