> "I am righteously indignant; you are annoyed; he is making a fuss over nothing."

> Notice how the factual content remains unchanged.

I know that I am nitpicking and I am not a logician at all, but the factual content in these usages seems to me to be different when they are interpreted not just as formal propositions, but sentences made in a human context. To be "righteously indignant" has connotations that one is indignant about an important matter, whereas "making a fuss over nothing" implies that the matter is not very important. There is a significant difference in how important the matter is between these usages.

For e.g., one can differ on the matter of drawing cartoons of a religious figure. You can either be "righteously indignant" or "make a fuss over nothing" about it. These two have different factual content because they convey different claims about the severity of the matter.