Principle of least astonisment

[lonetwin]

If a necessary feature has a high astonishment factor, it may be necessary to redesign the feature.

Textbook formalization: People are part of the system. The design should match the user's experience, expectations, and mental models.

Source

[dwmkerr]

Makes a lot of sense I'd add https://en.wikipedia.org/wiki/Convention_over_configuration as well, will create an issue for that