If you can swap your slogan with a competitor’s without changing the meaning of either brand, then your slogan is meaningless.
For example, “You belong here” is not a positioning statement for a college seeking new students. It’s just noise.
It also doesn’t help to mix weasel words with more weasel words and then add specifics. On charity’s pitch: “Your contribution can help up to 35 people.”
“Up to” covers a lot of ground, doesn’t it?
It’s true that the copy we use can be noisy decoration, not often read or fully understood. But that doesn’t mean we shouldn’t put in the effort to make it useful and powerful.