Where Slack differentiated itself in practice is in eliminating separation of concerns in a manner which resolves moral hazard to the benefit of the platform pr

Where Slack differentiated itself in practice is in eliminating separation of concerns in a manner which resolves moral hazard to the benefit of the platform provider. Granted, they've continued to pivot since then. TLDR: Friction around a user having and controlling multiple identities. In collaboration platforms (email, chat, web sites) the user typically controls and administers the client; crucially and inescapably the user may select a client which conforms to the underlying protocols, and this includes clients which support multiple personas and intermediation of the visibility of those personas to each other. Utimately, through a variety of self-organizing mechanisms this gives rise to: work and personal email; chat personas; throwaway HN accounts. It also produces its own sorts of frictions / countermeasures: surveillance capitalism / surreptitious device tracking; the tension about work apps installed on personal devices; Uber spying on their competitors' businesses via drivers' phones.