Google's John Mueller said on Twitter that putting out more content doesn't necessarily make your web site any better, nor does it necessarily make your web site rank higher in Google's search results. "Just putting out more content doesn't necessarily make a site better," John wrote.
Here is the context, where someone was frustrated his content isn't getting ranked in the top stories box:
Just putting out more content doesn't necessarily make a site better.
— 🍌 John 🍌 (@JohnMu) October 21, 2018
More or bigger does not always mean better.
Of course, it makes logical sense to think that the more content you have, the more chances you have to rank for different keywords. But if your content isn't better, in Google's eyes, compared to other content they have in the index, then it won't rank as well as that other content. So creating more content that doesn't rank, doesn't really help you, your users, Google or anyone.
Forum discussion at Twitter.