If she doesn’t get the reward, would anybody at all in the future ever respond to any such offers? Why would anybody take any risks at all when the wording is ambiguous, and possibly intended to make collection of the reward unlikely or impossible?
Yes. There is a near infinite supply of stupidity and naivete.
Plenty of people will help the system, because they find it the morally correct thing to do, or they are afraid and think the system will provide some protection.