A user reported Fable 5 in ultracode mode deleted 2.2M files, and the counter-thread appeared within hours.

The top r/ClaudeAI post (1,002 upvotes, 296 comments) is an unverified first-hand report with minimal actual loss because off-site backups existed. No logs, no transcript: treat it as anecdote. What's more interesting is that a counter-thread appeared the same day asking what permissions and prompts these users are actually handing the agent, and its comments converged on unsandboxed shell access, broad recursive scopes, and auto-approve modes. The outrage-then-nuance cycle compressed from days to hours. The actionable advice lives in the counter-thread, which is where it usually does.