Mores are the unwritten rules that govern behavior within a community — not laws, which are codified and enforced, but customs, which are absorbed and performed. In software development, mores are the conventions that no README documents: how long a pull request should sit before review, whether you refactor code you did not write, the acceptable ratio of comments to code.
These norms are invisible until violated. A developer who breaks a more discovers its existence in the same moment they discover its force. ████████████████████████████████████