I haven't watched this yet, but it looks like an interesting analysis:
> Why Do Companies Stop Using Haskell? | Vaibhav Sagar | ZuriHac 2026
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> OST – Ostschweizer Fachhochschule
> 2,835 views Sep 11, 2026 #Haskell #ZuriHac #functionalprogramming
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> Why do companies stop using Haskell, even when the language itself works well? Vaibhav Sagar examines real-world cases to uncover the business, organizational, and technical forces that can push companies away from Haskell.
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> The talk begins by examining Haskell's unique position in the software industry. While Haskell has proven itself capable of supporting successful businesses, it remains neither a mainstream technology nor the industry's newest trend. This creates a situation where failures are often attributed to the language itself, even when broader business forces are responsible. Sagar contrasts characteristics of the Haskell ecosystem with common business priorities such as profit maximization, short-term incentives, and the systematic undervaluation of maintenance work.
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> Through a series of recurring patterns, he analyzes how Haskell projects can end. These include large-scale rewrites, second-system effects, failed experiments, vanity projects, funding challenges, acquisitions, leadership changes, technology-fashion cycles, overly complex codebases, and infrastructure limitations. Along the way, he connects these stories to broader software engineering concepts such as technical debt, process improvement, organizational incentives, and long-term maintainability.