An easier question to answer is what was Holden not critical of...there would be a lot fewer things! Anyhow, look at that word: phony. Loosely, this means someone (or something) that is not acting genuinely, or in a fraudulent way. Holden finds many people in the story guilty of violating this code of conduct.
A report released Wednesday says Facebook is the top-downloaded iOS application on iTunes App Store. Facebook's flagship application is the most downloaded iOS app of all time on the iTunes App Store. A report released Wednesday by mobile app analytics firm App Annie shows Facebook's Messenger app comes in at No. 2, followed by other popular apps, such as YouTube and Skype. Instagram and WhatsApp Messenger, which were both acquired by Facebook over the past 3 years, take the No. 4 and No. 6 spots, respectively.
This statistic contains data on the number of apps available for download in leading app stores as of March 2017. As of that month, Android users were able to choose between 2.8 million apps. Apple's App Store remained the second-largest app store with 2.2 million available apps.