GitHub Deletes Prominent Bun Engineer Zack Radisic's Account, Sparking Community Concern

San Francisco, CA – GitHub has reportedly deleted the account of Zack Radisic, known as @zack_overflow on social media and a key engineer at the JavaScript runtime project Bun, prompting an immediate public inquiry from Bun's creator, Jarred Sumner. The deletion, which Radisic stated occurred "for no apparent reason," has led to the removal of his contributions, including Pull Requests (PRs) and issues, from the bunjavascript repository.

Jarred Sumner, founder of Bun, publicly addressed GitHub via a tweet on July 17, 2025, stating, > "hey @github, why did you delete zackradisic’s (@zack_overflow’s) account and can you un-delete it?" This direct appeal highlights the severity and unexpected nature of the incident for the Bun team.

Radisic, an engineer at Bun, confirmed the account deletion on his own X (formerly Twitter) profile, noting the significant impact on his work. > "My @github account got deleted for no apparent reason and it deleted all my PRs and issues on the @bunjavascript repo," he tweeted. This sudden removal of contributions raises questions about the integrity of open-source project histories and developer profiles.

GitHub's official policy on personal account deletion states that "Once your personal account has been deleted, GitHub cannot restore your content." While repositories deleted by a user can sometimes be restored within 90 days, the policy implies a permanent loss of associated data like PRs and issues if the entire account is removed. The username, however, typically becomes available for reuse after 90 days.

The incident has drawn attention to GitHub's account management practices and the potential vulnerability of developer contributions on the platform. As of now, GitHub has not publicly responded to the inquiries from Sumner or Radisic regarding the specific reasons for the deletion or the possibility of restoration. The developer community awaits further clarification from GitHub on this significant event.