A stranger opened an issue on one of my small CLI tools last month: "The --watch flag in your README doesn't exist." They were right. I had removed --watch two releases earlier, rewritten the feature as a config option, updated the changelog, and forgotten the README's usage section entirely. Worse, the README still showed a fenced code block demonstrating the flag, so every new user was copy-pasting a command that errored out immediately. This is documentation drift, and it's embarrass...