I think the word rationality could use protection against too much emotional attachment to it. It should retain a specific meaning instead of becoming 'everything that's useful'.

I'm not in love with using the word "rationality" for what this community means by rationality. But (1) I can't come up with a better word, (2) there's no point in fighting to the death for a definition, and (3) thanks to the strength of various cognitive biases, it's quite hard to figure out how to be rational and worth the effort to try.