Shares of image-browsing platform Pinterest (PINS -10.57%) plunged on Friday following its financial report for the fourth quarter of 2023. Pinterest stock was down 11% as of 10 a.m. ET, which is a big drop. But the market frankly doesn't appear to know how to react to its Q4 report. Shares had bounced all over the place in after-hours trading, from close to flat to down almost 30%. Why is the market conflicted? On one hand, Pinterest's Q4 growth and guidance for the upcoming first quarter of 2024 were belo ...