It’s actually the loss of quality service. Github since microsoft’s take over, and especially since the introduction of copilot, has been ridiculously unstable for one of the most used sites on the internet, previously unheard of incidents of just outright deleting data, and their Rogue AI randomly automatically adding itself to your code base without your permission or knowledge.

Given the opensource nature of git, the low cost of entry for github’ss competitors like gitgud or self hosted solutions like codeberg, and the incredibly shit service microsoft has offered, no one but the most sycophantic microsoft fans would ever pay for github… and microsoft-fan developers hate open source software and licenses and would never willingly offer source code for free. So there’s no market share.