With Google’s recent monopoly status being a topic a discussion recently. This article from 2017 argues that we should nationalize these platforms in the age of platform capitalism. Ahead of its time, in fact the author predicted the downfall of Ello.
Best case it’s gonna get bloated and beurocratic (any monopoly, but especially state run ones) and if it’s government owned they’ll use the power of the government to prevent competition (more than a private monopoly which will still try but won’t have as much power to do so).
Worst case it goes off the rails and the service is unavailable/unusable. If it’s anything important - say the Soviet’s food production - anybody who needs that service doesn’t get it.