Zuckerburg's Net Worth Drops by $3 Billion

3rd quarter sales for FB increased by 56% in comparison to the prior year. But shares in FB have plummeted by over 8% after the company announced spending increases for 2017 and their plan to limit the number of ads shown on news feeds. According to Business Insider

"One of the main contributions to Facebook's revenue growth is ad load, or the number of ads that can be placed in the News Feed. Wehner cautioned again on Wednesday that the company projects ad load growth to "come down meaningfully" in mid 2017, which means it's running out of space to serve ads."

What's your call on FB's move in increase spending and reducing one of its primary drivers of revenue growth for 2017?