Signs of over-moderation and increasing toxicity on Stack Overflow became particularly evident around 2016, as reflected by the visible plateau in activity.
Many legitimate questions were closed as duplicates or marked off-topic despite being neither. Numerous high-quality answers were heavily edited to sound more "neutral", often diluting their practical value and original intent.
Some high-profile users (with reputation scores > 10,000) were reportedly incentivized by commercial employers to systematically target and downvote or flag answers that favored competing products. As a result, answers from genuine users that recommended commercial solutions based on personal experience were frequently removed altogether.
Additionally, the platform suffers from a lack of centralized authentication: each Stack Exchange subdomain still operates with its own isolated login system, which creates unnecessary friction and discourages broader user participation.
Many legitimate questions were closed as duplicates or marked off-topic despite being neither. Numerous high-quality answers were heavily edited to sound more "neutral", often diluting their practical value and original intent.
Some high-profile users (with reputation scores > 10,000) were reportedly incentivized by commercial employers to systematically target and downvote or flag answers that favored competing products. As a result, answers from genuine users that recommended commercial solutions based on personal experience were frequently removed altogether.
Additionally, the platform suffers from a lack of centralized authentication: each Stack Exchange subdomain still operates with its own isolated login system, which creates unnecessary friction and discourages broader user participation.