From that perspective, if you are not lying in your marketing, then you must just be telling truths about your product. So what's wrong with just writing the features and letting us decide instead of adding all the flowery weasel words?

Obviously this doesn't work for most people. Long feature lists can even be a turn off. But I think software people often see products through the lens of what it can do instead of how it makes them feel. That is the hurdle I think a lot of us have to get over because we are so used to writing code to make programs do things and not to make people feel things (I can't imagine how that unit test looks).