That's not true at all. The fact someone sees no value in something is interesting. In your case, why don't you use your car? Maybe public transport has improved. Maybe C-19 is impacting your social life. Maybe you've started remote working more. The "what" (eg you don't drive) isn't interesting but the "why" definitely is.

The fact someone is choosing not to use LinkedIn means they're not getting value from it. Why is that? How could LinkedIn fix that? Are they using an alternative?

If you're more curious about the reasons behind events you can learn a lot.