Weasel words lead to speech with anything meaningful removed. Adverts are full of them, politicians live on them, big business thrives on them. They may be common but theyre still totally and utterly despisable. At best they turn speech into mere noise. At worse they actively deceive. The only thing you can learn from a sentence full of weasel words is that the person uttering it is either a moron who doesnt know theyre talking gibberish, a con-artist or a liar. Morons, con-artists and liars arent exactly assets in the world.
These people dont really merit a moment more of your time than the few seconds it takes to sneer at them, but making the effort to loudly and publicly ridicule them would only be to the betterment of everyone.