It's just you.
The example of the journalist is a very good example of exactly why this is such an extreme issue, but it really starts with the small things. What if you want to call someone, and not tell them your name? well, f#$£ you then, the app already told them. Don't want everyone knowing where you work? well f$%& you again, maybe somebody added that with your name in the app (just as the example of the journalist).
So now you call, say, your beloved grandma and your number shows up as "Henry the drug dealer". Maybe you don't even deal drugs, but someone a) thought it'd be funny or b) wants to hurt your reputation.
Or even worse, imagine you call a company regarding an application for a job. It's already a big enough problem that someone else posting a picture of you doing something stupid while drunk can ruin your chances of getting a job; now we're talking about attaching random, possibly personal, possibly untrue information to your phone number for everyone to see without even informing you.
This isn't a molehill. It's borderline criminal.