If it takes off, it will kill journalism, at least on the Internet. I don't think I'm exaggerating much. The New York Times, Wall Street Journal, and the like would suddenly have a tremendous pressure to write clickbaity articles at the expense of substantive ones. I presume they would be fact-checked clickbaity articles, but clickbait nonetheless.
This type of business model is all but certainly not fit for traditional news content. What do you think will get to the top, top 10 lists - or more informative but ultimately less widely exciting news stories?
On a side note, L2 did a short Winners & Losers segment about how news companies made huge mistakes in the online world. It's an interesting little watch: