Marketing is asking us (Development) to change some UI text to be grammatically incorrect. Specifically, they're basically asking to remove hyphens from compound adjectives (e.g., 'thirty-foot wingspan', 'late-fee messages').
That would change the meaning of the text. But maybe 95% of users don't know better. In which case, there's an argument to be made that grammatically incorrect equates to a better user experience.
And there is one case where I myself have opted not to use hyphens even though they are called for, grammatically speaking. Example:
"Show credit card transactions"
I'm curious if anyone else has settled on a rule for this. Or if there's a style guide that has good guidance on this question.