The subscription model is a true modernized return to the good old ways of creating a product that sells because it’s good quality. How? If a user is not satisfied, they will stop paying. Slack has all the incentives to improve their product, especially in the face of competition.
Is that true? For a social app where every user pays, sure, but Slack is generally paid for by a central business/group/organization. If the users in the organization are sufficiently unhappy with Slack, a functional organization should be unhappy with Slack, and if the organization is unhappy it can migrate everybody elsewhere overnight, with minimal social impact.
