KEY POINTS
  • Zuckerberg said Facebook will be "investing at a much higher level."
  • The company said operating expenses would rise 45 percent to 60 percent in 2018
  • Analysts are expecting Facebook revenue to rise 30 percent next year.
Mark Zuckerberg, chief executive officer of Facebook Inc., speaks during an event in Menlo Park, California.

Facebook CEO Mark Zuckerberg indicated that defending its 2 billion users from fake news, hate speech and other unwanted content may put a serious dent in the company's profit margins.

"I want to be clear about what our priority is," Zuckerberg said on Wednesday after the company reported third-quarter earnings. "Protecting our community is more important than maximizing our profits."