Yeah, people keep saying they do this because of some "research" but I suspect that whatever research that was is very wrong. Here's what doesn't add up: the story of someone's life and activities is only truly interesting for a small fraction of the population, maybe one out of 50 people. So if you're going to write an article about a newsworthy scientific accomplishment, what are the chances that the people involved also happen to have a compelling life story? Pretty low. It's obvious to a numerate person that the first several paragraphs are there for no good reason, yet the author insists on wasting our time anyway, so we get annoyed and find something else to do.