Q.2.2 yes. because almost everyone will be able to see everything you poste. it can be very risky because people might target where you are, they can know what is going on in your life, it makes people to hack your account, try to kidnap you or hijack you if you might be moneyed. when posting one should be very careful since when you poste you cannot delete what you posted, so people should be very careful about this .

Referencing

https://simone58476.wordpress.com/2017/05/08/question-2-2-digital-footprints-can-be-construed-as-trails-that-digital-citizens-leave-online-do-you-think-that-digital-footprints-could-become-a-problem/