I've noticed a whole spate of questions here on this StackExchange using single quotes ' ' as a substitute for double quotes " " , in their function of denoting words as words. Is this usage kosher as long as one sticks to the same convention within a text? Is there an idiosyncratic use of single quotes in this manner by an authority, like the New Yorker?
EDIT: I probably should have added an example to make my point more clear. Which of the following titles is better stylistically:
Is 'passion' a more descriptive word to use in this sentence versus 'love'?
versus
Is "passion" a more descriptive word to use in this sentence versus "love"?